Home / 40,686.20-56,142.04-22,779.80

Finding the Fourth Proportional to 40,686.20, 56,142.04 and 22,779.80

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Solution

The fourth proportional to 40,686.20, 56,142.04 and 22,779.80 is: 31,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,686.20 : 56,142.04 = 22,779.80 : x
  2. Step 2: Convert to fraction form
    40,686.20/56,142.04 = 22,779.80/x
  3. Step 3: Cross multiply
    40,686.20x = 56,142.04 × 22,779.80
  4. Step 4: Simplify right side
    40,686.20x = 1,278,904,442.79
  5. Step 5: Solve for x
    x = 1,278,904,442.79/40,686.20
  6. Step 6: Final answer
    x = 31,433.37

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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.