Home / 25,453.95-35,135.78-15,382.77

Finding the Fourth Proportional to 25,453.95, 35,135.78 and 15,382.77

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Solution

The fourth proportional to 25,453.95, 35,135.78 and 15,382.77 is: 21,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,453.95 : 35,135.78 = 15,382.77 : x
  2. Step 2: Convert to fraction form
    25,453.95/35,135.78 = 15,382.77/x
  3. Step 3: Cross multiply
    25,453.95x = 35,135.78 × 15,382.77
  4. Step 4: Simplify right side
    25,453.95x = 540,485,545.60
  5. Step 5: Solve for x
    x = 540,485,545.60/25,453.95
  6. Step 6: Final answer
    x = 21,233.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.