Home / 22,490.16-31,044.60-18,291.12

Finding the Fourth Proportional to 22,490.16, 31,044.60 and 18,291.12

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Solution

The fourth proportional to 22,490.16, 31,044.60 and 18,291.12 is: 25,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.16 : 31,044.60 = 18,291.12 : x
  2. Step 2: Convert to fraction form
    22,490.16/31,044.60 = 18,291.12/x
  3. Step 3: Cross multiply
    22,490.16x = 31,044.60 × 18,291.12
  4. Step 4: Simplify right side
    22,490.16x = 567,840,503.95
  5. Step 5: Solve for x
    x = 567,840,503.95/22,490.16
  6. Step 6: Final answer
    x = 25,248.40

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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.