Home / 22,632.68-31,231.65-12,561.13

Finding the Fourth Proportional to 22,632.68, 31,231.65 and 12,561.13

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Solution

The fourth proportional to 22,632.68, 31,231.65 and 12,561.13 is: 17,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,632.68 : 31,231.65 = 12,561.13 : x
  2. Step 2: Convert to fraction form
    22,632.68/31,231.65 = 12,561.13/x
  3. Step 3: Cross multiply
    22,632.68x = 31,231.65 × 12,561.13
  4. Step 4: Simplify right side
    22,632.68x = 392,304,831.25
  5. Step 5: Solve for x
    x = 392,304,831.25/22,632.68
  6. Step 6: Final answer
    x = 17,333.55

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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.