Home / 26,378.30-36,386.61-15,619.46

Finding the Fourth Proportional to 26,378.30, 36,386.61 and 15,619.46

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Solution

The fourth proportional to 26,378.30, 36,386.61 and 15,619.46 is: 21,545.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.30 : 36,386.61 = 15,619.46 : x
  2. Step 2: Convert to fraction form
    26,378.30/36,386.61 = 15,619.46/x
  3. Step 3: Cross multiply
    26,378.30x = 36,386.61 × 15,619.46
  4. Step 4: Simplify right side
    26,378.30x = 568,339,199.43
  5. Step 5: Solve for x
    x = 568,339,199.43/26,378.30
  6. Step 6: Final answer
    x = 21,545.71

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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.