Home / 43,387.68-65,036.43-18,443.73

Finding the Fourth Proportional to 43,387.68, 65,036.43 and 18,443.73

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Solution

The fourth proportional to 43,387.68, 65,036.43 and 18,443.73 is: 27,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.68 : 65,036.43 = 18,443.73 : x
  2. Step 2: Convert to fraction form
    43,387.68/65,036.43 = 18,443.73/x
  3. Step 3: Cross multiply
    43,387.68x = 65,036.43 × 18,443.73
  4. Step 4: Simplify right side
    43,387.68x = 1,199,514,355.08
  5. Step 5: Solve for x
    x = 1,199,514,355.08/43,387.68
  6. Step 6: Final answer
    x = 27,646.43

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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.