Home / 43,146.90-64,723.16-13,565.88

Finding the Fourth Proportional to 43,146.90, 64,723.16 and 13,565.88

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Solution

The fourth proportional to 43,146.90, 64,723.16 and 13,565.88 is: 20,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.90 : 64,723.16 = 13,565.88 : x
  2. Step 2: Convert to fraction form
    43,146.90/64,723.16 = 13,565.88/x
  3. Step 3: Cross multiply
    43,146.90x = 64,723.16 × 13,565.88
  4. Step 4: Simplify right side
    43,146.90x = 878,026,621.78
  5. Step 5: Solve for x
    x = 878,026,621.78/43,146.90
  6. Step 6: Final answer
    x = 20,349.70

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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.