Home / 22,752.90-31,395.20-12,679.13

Finding the Fourth Proportional to 22,752.90, 31,395.20 and 12,679.13

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Solution

The fourth proportional to 22,752.90, 31,395.20 and 12,679.13 is: 17,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,752.90 : 31,395.20 = 12,679.13 : x
  2. Step 2: Convert to fraction form
    22,752.90/31,395.20 = 12,679.13/x
  3. Step 3: Cross multiply
    22,752.90x = 31,395.20 × 12,679.13
  4. Step 4: Simplify right side
    22,752.90x = 398,063,837.27
  5. Step 5: Solve for x
    x = 398,063,837.27/22,752.90
  6. Step 6: Final answer
    x = 17,495.08

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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.