Home / 31,780.23-47,651.64-12,060.17

Finding the Fourth Proportional to 31,780.23, 47,651.64 and 12,060.17

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Solution

The fourth proportional to 31,780.23, 47,651.64 and 12,060.17 is: 18,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.23 : 47,651.64 = 12,060.17 : x
  2. Step 2: Convert to fraction form
    31,780.23/47,651.64 = 12,060.17/x
  3. Step 3: Cross multiply
    31,780.23x = 47,651.64 × 12,060.17
  4. Step 4: Simplify right side
    31,780.23x = 574,686,774.39
  5. Step 5: Solve for x
    x = 574,686,774.39/31,780.23
  6. Step 6: Final answer
    x = 18,083.16

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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.