Home / 47,272.50-70,909.02-12,209.76

Finding the Fourth Proportional to 47,272.50, 70,909.02 and 12,209.76

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Solution

The fourth proportional to 47,272.50, 70,909.02 and 12,209.76 is: 18,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,272.50 : 70,909.02 = 12,209.76 : x
  2. Step 2: Convert to fraction form
    47,272.50/70,909.02 = 12,209.76/x
  3. Step 3: Cross multiply
    47,272.50x = 70,909.02 × 12,209.76
  4. Step 4: Simplify right side
    47,272.50x = 865,782,116.04
  5. Step 5: Solve for x
    x = 865,782,116.04/47,272.50
  6. Step 6: Final answer
    x = 18,314.71

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1.5x scale

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.