Home / 47,971.28-71,950.43-12,913.04

Finding the Fourth Proportional to 47,971.28, 71,950.43 and 12,913.04

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Solution

The fourth proportional to 47,971.28, 71,950.43 and 12,913.04 is: 19,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,971.28 : 71,950.43 = 12,913.04 : x
  2. Step 2: Convert to fraction form
    47,971.28/71,950.43 = 12,913.04/x
  3. Step 3: Cross multiply
    47,971.28x = 71,950.43 × 12,913.04
  4. Step 4: Simplify right side
    47,971.28x = 929,098,356.29
  5. Step 5: Solve for x
    x = 929,098,356.29/47,971.28
  6. Step 6: Final answer
    x = 19,367.81

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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.