Home / 38,314.92-57,389.76-20,747.64

Finding the Fourth Proportional to 38,314.92, 57,389.76 and 20,747.64

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Solution

The fourth proportional to 38,314.92, 57,389.76 and 20,747.64 is: 31,076.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,314.92 : 57,389.76 = 20,747.64 : x
  2. Step 2: Convert to fraction form
    38,314.92/57,389.76 = 20,747.64/x
  3. Step 3: Cross multiply
    38,314.92x = 57,389.76 × 20,747.64
  4. Step 4: Simplify right side
    38,314.92x = 1,190,702,080.17
  5. Step 5: Solve for x
    x = 1,190,702,080.17/38,314.92
  6. Step 6: Final answer
    x = 31,076.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.