Home / 31,893-47,847.18-10,005

Finding the Fourth Proportional to 31,893, 47,847.18 and 10,005

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Solution

The fourth proportional to 31,893, 47,847.18 and 10,005 is: 15,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,893 : 47,847.18 = 10,005 : x
  2. Step 2: Convert to fraction form
    31,893/47,847.18 = 10,005/x
  3. Step 3: Cross multiply
    31,893x = 47,847.18 × 10,005
  4. Step 4: Simplify right side
    31,893x = 478,711,035.90
  5. Step 5: Solve for x
    x = 478,711,035.90/31,893
  6. Step 6: Final answer
    x = 15,009.91

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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.