Home / 48,380.43-72,598.67-20,298

Finding the Fourth Proportional to 48,380.43, 72,598.67 and 20,298

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Solution

The fourth proportional to 48,380.43, 72,598.67 and 20,298 is: 30,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,380.43 : 72,598.67 = 20,298 : x
  2. Step 2: Convert to fraction form
    48,380.43/72,598.67 = 20,298/x
  3. Step 3: Cross multiply
    48,380.43x = 72,598.67 × 20,298
  4. Step 4: Simplify right side
    48,380.43x = 1,473,607,803.66
  5. Step 5: Solve for x
    x = 1,473,607,803.66/48,380.43
  6. Step 6: Final answer
    x = 30,458.76

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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.