Home / 40,780.85-56,282.51-22,872.47

Finding the Fourth Proportional to 40,780.85, 56,282.51 and 22,872.47

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Solution

The fourth proportional to 40,780.85, 56,282.51 and 22,872.47 is: 31,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,780.85 : 56,282.51 = 22,872.47 : x
  2. Step 2: Convert to fraction form
    40,780.85/56,282.51 = 22,872.47/x
  3. Step 3: Cross multiply
    40,780.85x = 56,282.51 × 22,872.47
  4. Step 4: Simplify right side
    40,780.85x = 1,287,319,907.14
  5. Step 5: Solve for x
    x = 1,287,319,907.14/40,780.85
  6. Step 6: Final answer
    x = 31,566.77

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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.