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Finding the Fourth Proportional to 39,915, 59,872.26 and 10,332.72

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Solution

The fourth proportional to 39,915, 59,872.26 and 10,332.72 is: 15,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915 : 59,872.26 = 10,332.72 : x
  2. Step 2: Convert to fraction form
    39,915/59,872.26 = 10,332.72/x
  3. Step 3: Cross multiply
    39,915x = 59,872.26 × 10,332.72
  4. Step 4: Simplify right side
    39,915x = 618,643,298.35
  5. Step 5: Solve for x
    x = 618,643,298.35/39,915
  6. Step 6: Final answer
    x = 15,499.02

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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.