Home / 31,924.32-47,874.96-13,457.76

Finding the Fourth Proportional to 31,924.32, 47,874.96 and 13,457.76

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Solution

The fourth proportional to 31,924.32, 47,874.96 and 13,457.76 is: 20,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,924.32 : 47,874.96 = 13,457.76 : x
  2. Step 2: Convert to fraction form
    31,924.32/47,874.96 = 13,457.76/x
  3. Step 3: Cross multiply
    31,924.32x = 47,874.96 × 13,457.76
  4. Step 4: Simplify right side
    31,924.32x = 644,289,721.69
  5. Step 5: Solve for x
    x = 644,289,721.69/31,924.32
  6. Step 6: Final answer
    x = 20,181.78

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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.