Home / 22,857.04-31,535.22-13,423.78

Finding the Fourth Proportional to 22,857.04, 31,535.22 and 13,423.78

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Solution

The fourth proportional to 22,857.04, 31,535.22 and 13,423.78 is: 18,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,857.04 : 31,535.22 = 13,423.78 : x
  2. Step 2: Convert to fraction form
    22,857.04/31,535.22 = 13,423.78/x
  3. Step 3: Cross multiply
    22,857.04x = 31,535.22 × 13,423.78
  4. Step 4: Simplify right side
    22,857.04x = 423,321,855.53
  5. Step 5: Solve for x
    x = 423,321,855.53/22,857.04
  6. Step 6: Final answer
    x = 18,520.41

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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.