Home / 22,589.90-31,155.65-15,897.70

Finding the Fourth Proportional to 22,589.90, 31,155.65 and 15,897.70

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Solution

The fourth proportional to 22,589.90, 31,155.65 and 15,897.70 is: 21,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,589.90 : 31,155.65 = 15,897.70 : x
  2. Step 2: Convert to fraction form
    22,589.90/31,155.65 = 15,897.70/x
  3. Step 3: Cross multiply
    22,589.90x = 31,155.65 × 15,897.70
  4. Step 4: Simplify right side
    22,589.90x = 495,303,177.01
  5. Step 5: Solve for x
    x = 495,303,177.01/22,589.90
  6. Step 6: Final answer
    x = 21,925.87

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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.