Home / 26,545.31-39,774.20-15,420.77

Finding the Fourth Proportional to 26,545.31, 39,774.20 and 15,420.77

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Solution

The fourth proportional to 26,545.31, 39,774.20 and 15,420.77 is: 23,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,545.31 : 39,774.20 = 15,420.77 : x
  2. Step 2: Convert to fraction form
    26,545.31/39,774.20 = 15,420.77/x
  3. Step 3: Cross multiply
    26,545.31x = 39,774.20 × 15,420.77
  4. Step 4: Simplify right side
    26,545.31x = 613,348,790.13
  5. Step 5: Solve for x
    x = 613,348,790.13/26,545.31
  6. Step 6: Final answer
    x = 23,105.73

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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.