Home / 38,442.12-57,663.38-12,146.95

Finding the Fourth Proportional to 38,442.12, 57,663.38 and 12,146.95

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Solution

The fourth proportional to 38,442.12, 57,663.38 and 12,146.95 is: 18,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,442.12 : 57,663.38 = 12,146.95 : x
  2. Step 2: Convert to fraction form
    38,442.12/57,663.38 = 12,146.95/x
  3. Step 3: Cross multiply
    38,442.12x = 57,663.38 × 12,146.95
  4. Step 4: Simplify right side
    38,442.12x = 700,434,193.69
  5. Step 5: Solve for x
    x = 700,434,193.69/38,442.12
  6. Step 6: Final answer
    x = 18,220.49

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Half scale
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Double scale
Find fourth proportional to 38,443.12, 57,664.88 and 12,147.95
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.