Home / 20,679.54-31,025.79-7,529.46

Finding the Fourth Proportional to 20,679.54, 31,025.79 and 7,529.46

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Solution

The fourth proportional to 20,679.54, 31,025.79 and 7,529.46 is: 11,296.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679.54 : 31,025.79 = 7,529.46 : x
  2. Step 2: Convert to fraction form
    20,679.54/31,025.79 = 7,529.46/x
  3. Step 3: Cross multiply
    20,679.54x = 31,025.79 × 7,529.46
  4. Step 4: Simplify right side
    20,679.54x = 233,607,444.77
  5. Step 5: Solve for x
    x = 233,607,444.77/20,679.54
  6. Step 6: Final answer
    x = 11,296.55

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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.