Home / 22,925.20-31,634.40-13,493.20

Finding the Fourth Proportional to 22,925.20, 31,634.40 and 13,493.20

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Solution

The fourth proportional to 22,925.20, 31,634.40 and 13,493.20 is: 18,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,925.20 : 31,634.40 = 13,493.20 : x
  2. Step 2: Convert to fraction form
    22,925.20/31,634.40 = 13,493.20/x
  3. Step 3: Cross multiply
    22,925.20x = 31,634.40 × 13,493.20
  4. Step 4: Simplify right side
    22,925.20x = 426,849,286.08
  5. Step 5: Solve for x
    x = 426,849,286.08/22,925.20
  6. Step 6: Final answer
    x = 18,619.22

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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.