Home / 47,398.20-71,098.50-12,339.48

Finding the Fourth Proportional to 47,398.20, 71,098.50 and 12,339.48

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Solution

The fourth proportional to 47,398.20, 71,098.50 and 12,339.48 is: 18,509.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,398.20 : 71,098.50 = 12,339.48 : x
  2. Step 2: Convert to fraction form
    47,398.20/71,098.50 = 12,339.48/x
  3. Step 3: Cross multiply
    47,398.20x = 71,098.50 × 12,339.48
  4. Step 4: Simplify right side
    47,398.20x = 877,318,518.78
  5. Step 5: Solve for x
    x = 877,318,518.78/47,398.20
  6. Step 6: Final answer
    x = 18,509.53

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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.