Home / 47,421.22-71,135.50-14,138.74

Finding the Fourth Proportional to 47,421.22, 71,135.50 and 14,138.74

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Solution

The fourth proportional to 47,421.22, 71,135.50 and 14,138.74 is: 21,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,421.22 : 71,135.50 = 14,138.74 : x
  2. Step 2: Convert to fraction form
    47,421.22/71,135.50 = 14,138.74/x
  3. Step 3: Cross multiply
    47,421.22x = 71,135.50 × 14,138.74
  4. Step 4: Simplify right side
    47,421.22x = 1,005,766,339.27
  5. Step 5: Solve for x
    x = 1,005,766,339.27/47,421.22
  6. Step 6: Final answer
    x = 21,209.20

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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.