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Finding the Fourth Proportional to 40,357.71, 60,516.01 and 21,392.78

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Solution

The fourth proportional to 40,357.71, 60,516.01 and 21,392.78 is: 32,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,357.71 : 60,516.01 = 21,392.78 : x
  2. Step 2: Convert to fraction form
    40,357.71/60,516.01 = 21,392.78/x
  3. Step 3: Cross multiply
    40,357.71x = 60,516.01 × 21,392.78
  4. Step 4: Simplify right side
    40,357.71x = 1,294,605,412.57
  5. Step 5: Solve for x
    x = 1,294,605,412.57/40,357.71
  6. Step 6: Final answer
    x = 32,078.27

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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.