Home / 19,663.95-29,347.37-18,330.74

Finding the Fourth Proportional to 19,663.95, 29,347.37 and 18,330.74

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Solution

The fourth proportional to 19,663.95, 29,347.37 and 18,330.74 is: 27,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,663.95 : 29,347.37 = 18,330.74 : x
  2. Step 2: Convert to fraction form
    19,663.95/29,347.37 = 18,330.74/x
  3. Step 3: Cross multiply
    19,663.95x = 29,347.37 × 18,330.74
  4. Step 4: Simplify right side
    19,663.95x = 537,958,770.76
  5. Step 5: Solve for x
    x = 537,958,770.76/19,663.95
  6. Step 6: Final answer
    x = 27,357.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.