Home / 43,387.68-65,081.52-12,218.88

Finding the Fourth Proportional to 43,387.68, 65,081.52 and 12,218.88

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Solution

The fourth proportional to 43,387.68, 65,081.52 and 12,218.88 is: 18,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.68 : 65,081.52 = 12,218.88 : x
  2. Step 2: Convert to fraction form
    43,387.68/65,081.52 = 12,218.88/x
  3. Step 3: Cross multiply
    43,387.68x = 65,081.52 × 12,218.88
  4. Step 4: Simplify right side
    43,387.68x = 795,223,283.10
  5. Step 5: Solve for x
    x = 795,223,283.10/43,387.68
  6. Step 6: Final answer
    x = 18,328.32

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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.