Home / 31,862.34-43,982.22-21,248.10

Finding the Fourth Proportional to 31,862.34, 43,982.22 and 21,248.10

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Solution

The fourth proportional to 31,862.34, 43,982.22 and 21,248.10 is: 29,330.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.34 : 43,982.22 = 21,248.10 : x
  2. Step 2: Convert to fraction form
    31,862.34/43,982.22 = 21,248.10/x
  3. Step 3: Cross multiply
    31,862.34x = 43,982.22 × 21,248.10
  4. Step 4: Simplify right side
    31,862.34x = 934,538,608.78
  5. Step 5: Solve for x
    x = 934,538,608.78/31,862.34
  6. Step 6: Final answer
    x = 29,330.51

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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.