Home / 26,278.65-39,388.66-10,479.53

Finding the Fourth Proportional to 26,278.65, 39,388.66 and 10,479.53

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Solution

The fourth proportional to 26,278.65, 39,388.66 and 10,479.53 is: 15,707.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,278.65 : 39,388.66 = 10,479.53 : x
  2. Step 2: Convert to fraction form
    26,278.65/39,388.66 = 10,479.53/x
  3. Step 3: Cross multiply
    26,278.65x = 39,388.66 × 10,479.53
  4. Step 4: Simplify right side
    26,278.65x = 412,774,716.40
  5. Step 5: Solve for x
    x = 412,774,716.40/26,278.65
  6. Step 6: Final answer
    x = 15,707.61

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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.