Home / 26,129.57-36,059.48-15,375.20

Finding the Fourth Proportional to 26,129.57, 36,059.48 and 15,375.20

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Solution

The fourth proportional to 26,129.57, 36,059.48 and 15,375.20 is: 21,218.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,129.57 : 36,059.48 = 15,375.20 : x
  2. Step 2: Convert to fraction form
    26,129.57/36,059.48 = 15,375.20/x
  3. Step 3: Cross multiply
    26,129.57x = 36,059.48 × 15,375.20
  4. Step 4: Simplify right side
    26,129.57x = 554,421,459.72
  5. Step 5: Solve for x
    x = 554,421,459.72/26,129.57
  6. Step 6: Final answer
    x = 21,218.17

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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.