Home / 47,736.20-71,604.30-12,679.40

Finding the Fourth Proportional to 47,736.20, 71,604.30 and 12,679.40

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Solution

The fourth proportional to 47,736.20, 71,604.30 and 12,679.40 is: 19,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,736.20 : 71,604.30 = 12,679.40 : x
  2. Step 2: Convert to fraction form
    47,736.20/71,604.30 = 12,679.40/x
  3. Step 3: Cross multiply
    47,736.20x = 71,604.30 × 12,679.40
  4. Step 4: Simplify right side
    47,736.20x = 907,899,561.42
  5. Step 5: Solve for x
    x = 907,899,561.42/47,736.20
  6. Step 6: Final answer
    x = 19,019.10

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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.