Home / 38,149.56-52,649.10-21,154.68

Finding the Fourth Proportional to 38,149.56, 52,649.10 and 21,154.68

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Solution

The fourth proportional to 38,149.56, 52,649.10 and 21,154.68 is: 29,194.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,149.56 : 52,649.10 = 21,154.68 : x
  2. Step 2: Convert to fraction form
    38,149.56/52,649.10 = 21,154.68/x
  3. Step 3: Cross multiply
    38,149.56x = 52,649.10 × 21,154.68
  4. Step 4: Simplify right side
    38,149.56x = 1,113,774,862.79
  5. Step 5: Solve for x
    x = 1,113,774,862.79/38,149.56
  6. Step 6: Final answer
    x = 29,194.96

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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.