Home / 22,853.46-31,537.54-12,781.78

Finding the Fourth Proportional to 22,853.46, 31,537.54 and 12,781.78

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Solution

The fourth proportional to 22,853.46, 31,537.54 and 12,781.78 is: 17,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,853.46 : 31,537.54 = 12,781.78 : x
  2. Step 2: Convert to fraction form
    22,853.46/31,537.54 = 12,781.78/x
  3. Step 3: Cross multiply
    22,853.46x = 31,537.54 × 12,781.78
  4. Step 4: Simplify right side
    22,853.46x = 403,105,898.02
  5. Step 5: Solve for x
    x = 403,105,898.02/22,853.46
  6. Step 6: Final answer
    x = 17,638.73

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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.