Home / 25,458.08-35,131.32-15,382.76

Finding the Fourth Proportional to 25,458.08, 35,131.32 and 15,382.76

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Solution

The fourth proportional to 25,458.08, 35,131.32 and 15,382.76 is: 21,227.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,458.08 : 35,131.32 = 15,382.76 : x
  2. Step 2: Convert to fraction form
    25,458.08/35,131.32 = 15,382.76/x
  3. Step 3: Cross multiply
    25,458.08x = 35,131.32 × 15,382.76
  4. Step 4: Simplify right side
    25,458.08x = 540,416,664.04
  5. Step 5: Solve for x
    x = 540,416,664.04/25,458.08
  6. Step 6: Final answer
    x = 21,227.71

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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.