Home / 48,538.98-72,787.86-20,471.58

Finding the Fourth Proportional to 48,538.98, 72,787.86 and 20,471.58

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Solution

The fourth proportional to 48,538.98, 72,787.86 and 20,471.58 is: 30,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,538.98 : 72,787.86 = 20,471.58 : x
  2. Step 2: Convert to fraction form
    48,538.98/72,787.86 = 20,471.58/x
  3. Step 3: Cross multiply
    48,538.98x = 72,787.86 × 20,471.58
  4. Step 4: Simplify right side
    48,538.98x = 1,490,082,499.02
  5. Step 5: Solve for x
    x = 1,490,082,499.02/48,538.98
  6. Step 6: Final answer
    x = 30,698.68

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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.