Home / 22,862.60-31,549.11-12,789.09

Finding the Fourth Proportional to 22,862.60, 31,549.11 and 12,789.09

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Solution

The fourth proportional to 22,862.60, 31,549.11 and 12,789.09 is: 17,648.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,862.60 : 31,549.11 = 12,789.09 : x
  2. Step 2: Convert to fraction form
    22,862.60/31,549.11 = 12,789.09/x
  3. Step 3: Cross multiply
    22,862.60x = 31,549.11 × 12,789.09
  4. Step 4: Simplify right side
    22,862.60x = 403,484,407.21
  5. Step 5: Solve for x
    x = 403,484,407.21/22,862.60
  6. Step 6: Final answer
    x = 17,648.23

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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.