Home / 20,529.48-30,734.24-18,559.66

Finding the Fourth Proportional to 20,529.48, 30,734.24 and 18,559.66

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Solution

The fourth proportional to 20,529.48, 30,734.24 and 18,559.66 is: 27,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.48 : 30,734.24 = 18,559.66 : x
  2. Step 2: Convert to fraction form
    20,529.48/30,734.24 = 18,559.66/x
  3. Step 3: Cross multiply
    20,529.48x = 30,734.24 × 18,559.66
  4. Step 4: Simplify right side
    20,529.48x = 570,417,044.76
  5. Step 5: Solve for x
    x = 570,417,044.76/20,529.48
  6. Step 6: Final answer
    x = 27,785.27

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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.