Home / 40,780.35-56,273.10-22,871.88

Finding the Fourth Proportional to 40,780.35, 56,273.10 and 22,871.88

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Solution

The fourth proportional to 40,780.35, 56,273.10 and 22,871.88 is: 31,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,780.35 : 56,273.10 = 22,871.88 : x
  2. Step 2: Convert to fraction form
    40,780.35/56,273.10 = 22,871.88/x
  3. Step 3: Cross multiply
    40,780.35x = 56,273.10 × 22,871.88
  4. Step 4: Simplify right side
    40,780.35x = 1,287,071,590.43
  5. Step 5: Solve for x
    x = 1,287,071,590.43/40,780.35
  6. Step 6: Final answer
    x = 31,561.07

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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.