Home / 47,751.76-71,628.30-12,691.24

Finding the Fourth Proportional to 47,751.76, 71,628.30 and 12,691.24

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Solution

The fourth proportional to 47,751.76, 71,628.30 and 12,691.24 is: 19,037.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,751.76 : 71,628.30 = 12,691.24 : x
  2. Step 2: Convert to fraction form
    47,751.76/71,628.30 = 12,691.24/x
  3. Step 3: Cross multiply
    47,751.76x = 71,628.30 × 12,691.24
  4. Step 4: Simplify right side
    47,751.76x = 909,051,946.09
  5. Step 5: Solve for x
    x = 909,051,946.09/47,751.76
  6. Step 6: Final answer
    x = 19,037.04

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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.