Home / 26,119.76-36,040.20-15,512.72

Finding the Fourth Proportional to 26,119.76, 36,040.20 and 15,512.72

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Solution

The fourth proportional to 26,119.76, 36,040.20 and 15,512.72 is: 21,404.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,119.76 : 36,040.20 = 15,512.72 : x
  2. Step 2: Convert to fraction form
    26,119.76/36,040.20 = 15,512.72/x
  3. Step 3: Cross multiply
    26,119.76x = 36,040.20 × 15,512.72
  4. Step 4: Simplify right side
    26,119.76x = 559,081,531.34
  5. Step 5: Solve for x
    x = 559,081,531.34/26,119.76
  6. Step 6: Final answer
    x = 21,404.54

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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.