Home / 43,387.31-65,034.39-18,406.28

Finding the Fourth Proportional to 43,387.31, 65,034.39 and 18,406.28

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Solution

The fourth proportional to 43,387.31, 65,034.39 and 18,406.28 is: 27,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.31 : 65,034.39 = 18,406.28 : x
  2. Step 2: Convert to fraction form
    43,387.31/65,034.39 = 18,406.28/x
  3. Step 3: Cross multiply
    43,387.31x = 65,034.39 × 18,406.28
  4. Step 4: Simplify right side
    43,387.31x = 1,197,041,191.97
  5. Step 5: Solve for x
    x = 1,197,041,191.97/43,387.31
  6. Step 6: Final answer
    x = 27,589.66

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1.5x scale

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.