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Finding the Fourth Proportional to 21,934.03, 32,881.13 and 11,391.71

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Solution

The fourth proportional to 21,934.03, 32,881.13 and 11,391.71 is: 17,077.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.03 : 32,881.13 = 11,391.71 : x
  2. Step 2: Convert to fraction form
    21,934.03/32,881.13 = 11,391.71/x
  3. Step 3: Cross multiply
    21,934.03x = 32,881.13 × 11,391.71
  4. Step 4: Simplify right side
    21,934.03x = 374,572,240.47
  5. Step 5: Solve for x
    x = 374,572,240.47/21,934.03
  6. Step 6: Final answer
    x = 17,077.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.