Home / 48,407.40-72,621.90-18,822.60

Finding the Fourth Proportional to 48,407.40, 72,621.90 and 18,822.60

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Solution

The fourth proportional to 48,407.40, 72,621.90 and 18,822.60 is: 28,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,407.40 : 72,621.90 = 18,822.60 : x
  2. Step 2: Convert to fraction form
    48,407.40/72,621.90 = 18,822.60/x
  3. Step 3: Cross multiply
    48,407.40x = 72,621.90 × 18,822.60
  4. Step 4: Simplify right side
    48,407.40x = 1,366,932,974.94
  5. Step 5: Solve for x
    x = 1,366,932,974.94/48,407.40
  6. Step 6: Final answer
    x = 28,238.10

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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.