Home / 47,510.10-71,207.55-21,186.90

Finding the Fourth Proportional to 47,510.10, 71,207.55 and 21,186.90

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Solution

The fourth proportional to 47,510.10, 71,207.55 and 21,186.90 is: 31,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,510.10 : 71,207.55 = 21,186.90 : x
  2. Step 2: Convert to fraction form
    47,510.10/71,207.55 = 21,186.90/x
  3. Step 3: Cross multiply
    47,510.10x = 71,207.55 × 21,186.90
  4. Step 4: Simplify right side
    47,510.10x = 1,508,667,241.10
  5. Step 5: Solve for x
    x = 1,508,667,241.10/47,510.10
  6. Step 6: Final answer
    x = 31,754.66

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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.