Home / 31,346.43-47,008.70-13,806.69

Finding the Fourth Proportional to 31,346.43, 47,008.70 and 13,806.69

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Solution

The fourth proportional to 31,346.43, 47,008.70 and 13,806.69 is: 20,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.43 : 47,008.70 = 13,806.69 : x
  2. Step 2: Convert to fraction form
    31,346.43/47,008.70 = 13,806.69/x
  3. Step 3: Cross multiply
    31,346.43x = 47,008.70 × 13,806.69
  4. Step 4: Simplify right side
    31,346.43x = 649,034,582.72
  5. Step 5: Solve for x
    x = 649,034,582.72/31,346.43
  6. Step 6: Final answer
    x = 20,705.22

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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.