Home / 37,778.43-52,132.17-20,779.92

Finding the Fourth Proportional to 37,778.43, 52,132.17 and 20,779.92

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Solution

The fourth proportional to 37,778.43, 52,132.17 and 20,779.92 is: 28,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.43 : 52,132.17 = 20,779.92 : x
  2. Step 2: Convert to fraction form
    37,778.43/52,132.17 = 20,779.92/x
  3. Step 3: Cross multiply
    37,778.43x = 52,132.17 × 20,779.92
  4. Step 4: Simplify right side
    37,778.43x = 1,083,302,322.03
  5. Step 5: Solve for x
    x = 1,083,302,322.03/37,778.43
  6. Step 6: Final answer
    x = 28,675.15

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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.