Home / 22,748.88-31,395.28-12,680.58

Finding the Fourth Proportional to 22,748.88, 31,395.28 and 12,680.58

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Solution

The fourth proportional to 22,748.88, 31,395.28 and 12,680.58 is: 17,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,748.88 : 31,395.28 = 12,680.58 : x
  2. Step 2: Convert to fraction form
    22,748.88/31,395.28 = 12,680.58/x
  3. Step 3: Cross multiply
    22,748.88x = 31,395.28 × 12,680.58
  4. Step 4: Simplify right side
    22,748.88x = 398,110,359.66
  5. Step 5: Solve for x
    x = 398,110,359.66/22,748.88
  6. Step 6: Final answer
    x = 17,500.22

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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.