Home / 48,423.32-72,663-20,340.92

Finding the Fourth Proportional to 48,423.32, 72,663 and 20,340.92

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Solution

The fourth proportional to 48,423.32, 72,663 and 20,340.92 is: 30,523.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,423.32 : 72,663 = 20,340.92 : x
  2. Step 2: Convert to fraction form
    48,423.32/72,663 = 20,340.92/x
  3. Step 3: Cross multiply
    48,423.32x = 72,663 × 20,340.92
  4. Step 4: Simplify right side
    48,423.32x = 1,478,032,269.96
  5. Step 5: Solve for x
    x = 1,478,032,269.96/48,423.32
  6. Step 6: Final answer
    x = 30,523.15

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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.