Home / 39,429.92-54,414.50-21,526.08

Finding the Fourth Proportional to 39,429.92, 54,414.50 and 21,526.08

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Solution

The fourth proportional to 39,429.92, 54,414.50 and 21,526.08 is: 29,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.92 : 54,414.50 = 21,526.08 : x
  2. Step 2: Convert to fraction form
    39,429.92/54,414.50 = 21,526.08/x
  3. Step 3: Cross multiply
    39,429.92x = 54,414.50 × 21,526.08
  4. Step 4: Simplify right side
    39,429.92x = 1,171,330,772.53
  5. Step 5: Solve for x
    x = 1,171,330,772.53/39,429.92
  6. Step 6: Final answer
    x = 29,706.65

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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.