Home / 22,699.42-31,325.44-12,490.59

Finding the Fourth Proportional to 22,699.42, 31,325.44 and 12,490.59

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Solution

The fourth proportional to 22,699.42, 31,325.44 and 12,490.59 is: 17,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,699.42 : 31,325.44 = 12,490.59 : x
  2. Step 2: Convert to fraction form
    22,699.42/31,325.44 = 12,490.59/x
  3. Step 3: Cross multiply
    22,699.42x = 31,325.44 × 12,490.59
  4. Step 4: Simplify right side
    22,699.42x = 391,273,227.61
  5. Step 5: Solve for x
    x = 391,273,227.61/22,699.42
  6. Step 6: Final answer
    x = 17,237.15

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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.