Home / 47,447.50-71,178.63-15,847.78

Finding the Fourth Proportional to 47,447.50, 71,178.63 and 15,847.78

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Solution

The fourth proportional to 47,447.50, 71,178.63 and 15,847.78 is: 23,774.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,447.50 : 71,178.63 = 15,847.78 : x
  2. Step 2: Convert to fraction form
    47,447.50/71,178.63 = 15,847.78/x
  3. Step 3: Cross multiply
    47,447.50x = 71,178.63 × 15,847.78
  4. Step 4: Simplify right side
    47,447.50x = 1,128,022,833.81
  5. Step 5: Solve for x
    x = 1,128,022,833.81/47,447.50
  6. Step 6: Final answer
    x = 23,774.13

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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.