Home / 26,489.32-39,721.84-15,820.56

Finding the Fourth Proportional to 26,489.32, 39,721.84 and 15,820.56

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Solution

The fourth proportional to 26,489.32, 39,721.84 and 15,820.56 is: 23,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,489.32 : 39,721.84 = 15,820.56 : x
  2. Step 2: Convert to fraction form
    26,489.32/39,721.84 = 15,820.56/x
  3. Step 3: Cross multiply
    26,489.32x = 39,721.84 × 15,820.56
  4. Step 4: Simplify right side
    26,489.32x = 628,421,753.03
  5. Step 5: Solve for x
    x = 628,421,753.03/26,489.32
  6. Step 6: Final answer
    x = 23,723.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.