Home / 48,387.68-72,586.10-18,807.80

Finding the Fourth Proportional to 48,387.68, 72,586.10 and 18,807.80

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Solution

The fourth proportional to 48,387.68, 72,586.10 and 18,807.80 is: 28,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.68 : 72,586.10 = 18,807.80 : x
  2. Step 2: Convert to fraction form
    48,387.68/72,586.10 = 18,807.80/x
  3. Step 3: Cross multiply
    48,387.68x = 72,586.10 × 18,807.80
  4. Step 4: Simplify right side
    48,387.68x = 1,365,184,851.58
  5. Step 5: Solve for x
    x = 1,365,184,851.58/48,387.68
  6. Step 6: Final answer
    x = 28,213.48

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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.