Home / 40,034.08-59,963.64-20,278.72

Finding the Fourth Proportional to 40,034.08, 59,963.64 and 20,278.72

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Solution

The fourth proportional to 40,034.08, 59,963.64 and 20,278.72 is: 30,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,034.08 : 59,963.64 = 20,278.72 : x
  2. Step 2: Convert to fraction form
    40,034.08/59,963.64 = 20,278.72/x
  3. Step 3: Cross multiply
    40,034.08x = 59,963.64 × 20,278.72
  4. Step 4: Simplify right side
    40,034.08x = 1,215,985,865.74
  5. Step 5: Solve for x
    x = 1,215,985,865.74/40,034.08
  6. Step 6: Final answer
    x = 30,373.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.