Home / 27,998.10-42,013.35-10,469.70

Finding the Fourth Proportional to 27,998.10, 42,013.35 and 10,469.70

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Solution

The fourth proportional to 27,998.10, 42,013.35 and 10,469.70 is: 15,710.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,998.10 : 42,013.35 = 10,469.70 : x
  2. Step 2: Convert to fraction form
    27,998.10/42,013.35 = 10,469.70/x
  3. Step 3: Cross multiply
    27,998.10x = 42,013.35 × 10,469.70
  4. Step 4: Simplify right side
    27,998.10x = 439,867,170.50
  5. Step 5: Solve for x
    x = 439,867,170.50/27,998.10
  6. Step 6: Final answer
    x = 15,710.61

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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.