Home / 27,729.43-38,280.71-17,125.21

Finding the Fourth Proportional to 27,729.43, 38,280.71 and 17,125.21

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Solution

The fourth proportional to 27,729.43, 38,280.71 and 17,125.21 is: 23,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.43 : 38,280.71 = 17,125.21 : x
  2. Step 2: Convert to fraction form
    27,729.43/38,280.71 = 17,125.21/x
  3. Step 3: Cross multiply
    27,729.43x = 38,280.71 × 17,125.21
  4. Step 4: Simplify right side
    27,729.43x = 655,565,197.70
  5. Step 5: Solve for x
    x = 655,565,197.70/27,729.43
  6. Step 6: Final answer
    x = 23,641.50

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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.