Home / 38,149.17-52,648.98-21,158.76

Finding the Fourth Proportional to 38,149.17, 52,648.98 and 21,158.76

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Solution

The fourth proportional to 38,149.17, 52,648.98 and 21,158.76 is: 29,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,149.17 : 52,648.98 = 21,158.76 : x
  2. Step 2: Convert to fraction form
    38,149.17/52,648.98 = 21,158.76/x
  3. Step 3: Cross multiply
    38,149.17x = 52,648.98 × 21,158.76
  4. Step 4: Simplify right side
    38,149.17x = 1,113,987,132.06
  5. Step 5: Solve for x
    x = 1,113,987,132.06/38,149.17
  6. Step 6: Final answer
    x = 29,200.82

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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.