Home / 26,144.87-36,081.80-15,390.29

Finding the Fourth Proportional to 26,144.87, 36,081.80 and 15,390.29

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Solution

The fourth proportional to 26,144.87, 36,081.80 and 15,390.29 is: 21,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,144.87 : 36,081.80 = 15,390.29 : x
  2. Step 2: Convert to fraction form
    26,144.87/36,081.80 = 15,390.29/x
  3. Step 3: Cross multiply
    26,144.87x = 36,081.80 × 15,390.29
  4. Step 4: Simplify right side
    26,144.87x = 555,309,108.36
  5. Step 5: Solve for x
    x = 555,309,108.36/26,144.87
  6. Step 6: Final answer
    x = 21,239.70

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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.