Home / 47,086.20-70,629.30-19,019.70

Finding the Fourth Proportional to 47,086.20, 70,629.30 and 19,019.70

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Solution

The fourth proportional to 47,086.20, 70,629.30 and 19,019.70 is: 28,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,086.20 : 70,629.30 = 19,019.70 : x
  2. Step 2: Convert to fraction form
    47,086.20/70,629.30 = 19,019.70/x
  3. Step 3: Cross multiply
    47,086.20x = 70,629.30 × 19,019.70
  4. Step 4: Simplify right side
    47,086.20x = 1,343,348,097.21
  5. Step 5: Solve for x
    x = 1,343,348,097.21/47,086.20
  6. Step 6: Final answer
    x = 28,529.55

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Similar ratio
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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.