Home / 22,531.38-31,095.64-12,971.61

Finding the Fourth Proportional to 22,531.38, 31,095.64 and 12,971.61

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Solution

The fourth proportional to 22,531.38, 31,095.64 and 12,971.61 is: 17,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,531.38 : 31,095.64 = 12,971.61 : x
  2. Step 2: Convert to fraction form
    22,531.38/31,095.64 = 12,971.61/x
  3. Step 3: Cross multiply
    22,531.38x = 31,095.64 × 12,971.61
  4. Step 4: Simplify right side
    22,531.38x = 403,360,514.78
  5. Step 5: Solve for x
    x = 403,360,514.78/22,531.38
  6. Step 6: Final answer
    x = 17,902.17

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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.