Home / 31,541.90-47,311.79-7,849.40

Finding the Fourth Proportional to 31,541.90, 47,311.79 and 7,849.40

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Solution

The fourth proportional to 31,541.90, 47,311.79 and 7,849.40 is: 11,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541.90 : 47,311.79 = 7,849.40 : x
  2. Step 2: Convert to fraction form
    31,541.90/47,311.79 = 7,849.40/x
  3. Step 3: Cross multiply
    31,541.90x = 47,311.79 × 7,849.40
  4. Step 4: Simplify right side
    31,541.90x = 371,369,125.18
  5. Step 5: Solve for x
    x = 371,369,125.18/31,541.90
  6. Step 6: Final answer
    x = 11,773.83

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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.