Home / 47,580.18-71,371.44-15,990.72

Finding the Fourth Proportional to 47,580.18, 71,371.44 and 15,990.72

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Solution

The fourth proportional to 47,580.18, 71,371.44 and 15,990.72 is: 23,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,580.18 : 71,371.44 = 15,990.72 : x
  2. Step 2: Convert to fraction form
    47,580.18/71,371.44 = 15,990.72/x
  3. Step 3: Cross multiply
    47,580.18x = 71,371.44 × 15,990.72
  4. Step 4: Simplify right side
    47,580.18x = 1,141,280,713.04
  5. Step 5: Solve for x
    x = 1,141,280,713.04/47,580.18
  6. Step 6: Final answer
    x = 23,986.47

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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.