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Finding the Fourth Proportional to 45,441, 62,686.71 and 28,214.73

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Solution

The fourth proportional to 45,441, 62,686.71 and 28,214.73 is: 38,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,441 : 62,686.71 = 28,214.73 : x
  2. Step 2: Convert to fraction form
    45,441/62,686.71 = 28,214.73/x
  3. Step 3: Cross multiply
    45,441x = 62,686.71 × 28,214.73
  4. Step 4: Simplify right side
    45,441x = 1,768,688,597.24
  5. Step 5: Solve for x
    x = 1,768,688,597.24/45,441
  6. Step 6: Final answer
    x = 38,922.75

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.