Home / 22,872.61-31,560.39-13,442.99

Finding the Fourth Proportional to 22,872.61, 31,560.39 and 13,442.99

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Solution

The fourth proportional to 22,872.61, 31,560.39 and 13,442.99 is: 18,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,872.61 : 31,560.39 = 13,442.99 : x
  2. Step 2: Convert to fraction form
    22,872.61/31,560.39 = 13,442.99/x
  3. Step 3: Cross multiply
    22,872.61x = 31,560.39 × 13,442.99
  4. Step 4: Simplify right side
    22,872.61x = 424,266,007.17
  5. Step 5: Solve for x
    x = 424,266,007.17/22,872.61
  6. Step 6: Final answer
    x = 18,549.09

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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.