Home / 43,387.82-65,080.50-13,807.43

Finding the Fourth Proportional to 43,387.82, 65,080.50 and 13,807.43

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Solution

The fourth proportional to 43,387.82, 65,080.50 and 13,807.43 is: 20,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.82 : 65,080.50 = 13,807.43 : x
  2. Step 2: Convert to fraction form
    43,387.82/65,080.50 = 13,807.43/x
  3. Step 3: Cross multiply
    43,387.82x = 65,080.50 × 13,807.43
  4. Step 4: Simplify right side
    43,387.82x = 898,594,122.71
  5. Step 5: Solve for x
    x = 898,594,122.71/43,387.82
  6. Step 6: Final answer
    x = 20,710.75

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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.