Home / 38,124.78-52,614.12-21,130.92

Finding the Fourth Proportional to 38,124.78, 52,614.12 and 21,130.92

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Solution

The fourth proportional to 38,124.78, 52,614.12 and 21,130.92 is: 29,161.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,124.78 : 52,614.12 = 21,130.92 : x
  2. Step 2: Convert to fraction form
    38,124.78/52,614.12 = 21,130.92/x
  3. Step 3: Cross multiply
    38,124.78x = 52,614.12 × 21,130.92
  4. Step 4: Simplify right side
    38,124.78x = 1,111,784,760.59
  5. Step 5: Solve for x
    x = 1,111,784,760.59/38,124.78
  6. Step 6: Final answer
    x = 29,161.74

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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.