Home / 22,752.48-31,397.60-12,680.40

Finding the Fourth Proportional to 22,752.48, 31,397.60 and 12,680.40

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Solution

The fourth proportional to 22,752.48, 31,397.60 and 12,680.40 is: 17,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,752.48 : 31,397.60 = 12,680.40 : x
  2. Step 2: Convert to fraction form
    22,752.48/31,397.60 = 12,680.40/x
  3. Step 3: Cross multiply
    22,752.48x = 31,397.60 × 12,680.40
  4. Step 4: Simplify right side
    22,752.48x = 398,134,127.04
  5. Step 5: Solve for x
    x = 398,134,127.04/22,752.48
  6. Step 6: Final answer
    x = 17,498.49

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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.