Home / 22,490.24-31,007.64-18,442.20

Finding the Fourth Proportional to 22,490.24, 31,007.64 and 18,442.20

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Solution

The fourth proportional to 22,490.24, 31,007.64 and 18,442.20 is: 25,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.24 : 31,007.64 = 18,442.20 : x
  2. Step 2: Convert to fraction form
    22,490.24/31,007.64 = 18,442.20/x
  3. Step 3: Cross multiply
    22,490.24x = 31,007.64 × 18,442.20
  4. Step 4: Simplify right side
    22,490.24x = 571,849,098.41
  5. Step 5: Solve for x
    x = 571,849,098.41/22,490.24
  6. Step 6: Final answer
    x = 25,426.54

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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.