Home / 31,749.65-47,626.45-8,376.11

Finding the Fourth Proportional to 31,749.65, 47,626.45 and 8,376.11

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Solution

The fourth proportional to 31,749.65, 47,626.45 and 8,376.11 is: 12,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.65 : 47,626.45 = 8,376.11 : x
  2. Step 2: Convert to fraction form
    31,749.65/47,626.45 = 8,376.11/x
  3. Step 3: Cross multiply
    31,749.65x = 47,626.45 × 8,376.11
  4. Step 4: Simplify right side
    31,749.65x = 398,924,237.89
  5. Step 5: Solve for x
    x = 398,924,237.89/31,749.65
  6. Step 6: Final answer
    x = 12,564.68

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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.