Home / 38,373.85-52,959.79-21,380.86

Finding the Fourth Proportional to 38,373.85, 52,959.79 and 21,380.86

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Solution

The fourth proportional to 38,373.85, 52,959.79 and 21,380.86 is: 29,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,373.85 : 52,959.79 = 21,380.86 : x
  2. Step 2: Convert to fraction form
    38,373.85/52,959.79 = 21,380.86/x
  3. Step 3: Cross multiply
    38,373.85x = 52,959.79 × 21,380.86
  4. Step 4: Simplify right side
    38,373.85x = 1,132,325,948.55
  5. Step 5: Solve for x
    x = 1,132,325,948.55/38,373.85
  6. Step 6: Final answer
    x = 29,507.75

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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.