Home / 31,722.79-47,589.68-10,664.89

Finding the Fourth Proportional to 31,722.79, 47,589.68 and 10,664.89

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Solution

The fourth proportional to 31,722.79, 47,589.68 and 10,664.89 is: 15,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,722.79 : 47,589.68 = 10,664.89 : x
  2. Step 2: Convert to fraction form
    31,722.79/47,589.68 = 10,664.89/x
  3. Step 3: Cross multiply
    31,722.79x = 47,589.68 × 10,664.89
  4. Step 4: Simplify right side
    31,722.79x = 507,538,702.34
  5. Step 5: Solve for x
    x = 507,538,702.34/31,722.79
  6. Step 6: Final answer
    x = 15,999.18

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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.