Home / 26,899.78-40,366.11-15,828.10

Finding the Fourth Proportional to 26,899.78, 40,366.11 and 15,828.10

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Solution

The fourth proportional to 26,899.78, 40,366.11 and 15,828.10 is: 23,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,899.78 : 40,366.11 = 15,828.10 : x
  2. Step 2: Convert to fraction form
    26,899.78/40,366.11 = 15,828.10/x
  3. Step 3: Cross multiply
    26,899.78x = 40,366.11 × 15,828.10
  4. Step 4: Simplify right side
    26,899.78x = 638,918,825.69
  5. Step 5: Solve for x
    x = 638,918,825.69/26,899.78
  6. Step 6: Final answer
    x = 23,751.82

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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.