Home / 40,397.72-55,745.16-29,793.20

Finding the Fourth Proportional to 40,397.72, 55,745.16 and 29,793.20

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Solution

The fourth proportional to 40,397.72, 55,745.16 and 29,793.20 is: 41,111.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,397.72 : 55,745.16 = 29,793.20 : x
  2. Step 2: Convert to fraction form
    40,397.72/55,745.16 = 29,793.20/x
  3. Step 3: Cross multiply
    40,397.72x = 55,745.16 × 29,793.20
  4. Step 4: Simplify right side
    40,397.72x = 1,660,826,700.91
  5. Step 5: Solve for x
    x = 1,660,826,700.91/40,397.72
  6. Step 6: Final answer
    x = 41,111.89

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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.