Home / 38,030.92-57,070.92-20,512.96

Finding the Fourth Proportional to 38,030.92, 57,070.92 and 20,512.96

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Solution

The fourth proportional to 38,030.92, 57,070.92 and 20,512.96 is: 30,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,030.92 : 57,070.92 = 20,512.96 : x
  2. Step 2: Convert to fraction form
    38,030.92/57,070.92 = 20,512.96/x
  3. Step 3: Cross multiply
    38,030.92x = 57,070.92 × 20,512.96
  4. Step 4: Simplify right side
    38,030.92x = 1,170,693,499.12
  5. Step 5: Solve for x
    x = 1,170,693,499.12/38,030.92
  6. Step 6: Final answer
    x = 30,782.68

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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.