Home / 26,129.90-36,061.92-15,378.98

Finding the Fourth Proportional to 26,129.90, 36,061.92 and 15,378.98

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Solution

The fourth proportional to 26,129.90, 36,061.92 and 15,378.98 is: 21,224.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,129.90 : 36,061.92 = 15,378.98 : x
  2. Step 2: Convert to fraction form
    26,129.90/36,061.92 = 15,378.98/x
  3. Step 3: Cross multiply
    26,129.90x = 36,061.92 × 15,378.98
  4. Step 4: Simplify right side
    26,129.90x = 554,595,546.44
  5. Step 5: Solve for x
    x = 554,595,546.44/26,129.90
  6. Step 6: Final answer
    x = 21,224.56

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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.