Home / 26,105.89-36,009.74-15,488

Finding the Fourth Proportional to 26,105.89, 36,009.74 and 15,488

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Solution

The fourth proportional to 26,105.89, 36,009.74 and 15,488 is: 21,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,105.89 : 36,009.74 = 15,488 : x
  2. Step 2: Convert to fraction form
    26,105.89/36,009.74 = 15,488/x
  3. Step 3: Cross multiply
    26,105.89x = 36,009.74 × 15,488
  4. Step 4: Simplify right side
    26,105.89x = 557,718,775.68
  5. Step 5: Solve for x
    x = 557,718,775.68/26,105.89
  6. Step 6: Final answer
    x = 21,363.72

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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.