Home / 31,987.10-44,160.28-21,250.38

Finding the Fourth Proportional to 31,987.10, 44,160.28 and 21,250.38

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Solution

The fourth proportional to 31,987.10, 44,160.28 and 21,250.38 is: 29,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,987.10 : 44,160.28 = 21,250.38 : x
  2. Step 2: Convert to fraction form
    31,987.10/44,160.28 = 21,250.38/x
  3. Step 3: Cross multiply
    31,987.10x = 44,160.28 × 21,250.38
  4. Step 4: Simplify right side
    31,987.10x = 938,422,730.91
  5. Step 5: Solve for x
    x = 938,422,730.91/31,987.10
  6. Step 6: Final answer
    x = 29,337.54

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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.