Home / 26,105.10-39,092.85-20,921.10

Finding the Fourth Proportional to 26,105.10, 39,092.85 and 20,921.10

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Solution

The fourth proportional to 26,105.10, 39,092.85 and 20,921.10 is: 31,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,105.10 : 39,092.85 = 20,921.10 : x
  2. Step 2: Convert to fraction form
    26,105.10/39,092.85 = 20,921.10/x
  3. Step 3: Cross multiply
    26,105.10x = 39,092.85 × 20,921.10
  4. Step 4: Simplify right side
    26,105.10x = 817,865,424.14
  5. Step 5: Solve for x
    x = 817,865,424.14/26,105.10
  6. Step 6: Final answer
    x = 31,329.72

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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.