Home / 44,147.20-66,221.52-12,985.60

Finding the Fourth Proportional to 44,147.20, 66,221.52 and 12,985.60

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Solution

The fourth proportional to 44,147.20, 66,221.52 and 12,985.60 is: 19,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,147.20 : 66,221.52 = 12,985.60 : x
  2. Step 2: Convert to fraction form
    44,147.20/66,221.52 = 12,985.60/x
  3. Step 3: Cross multiply
    44,147.20x = 66,221.52 × 12,985.60
  4. Step 4: Simplify right side
    44,147.20x = 859,926,170.11
  5. Step 5: Solve for x
    x = 859,926,170.11/44,147.20
  6. Step 6: Final answer
    x = 19,478.61

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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.