Home / 20,659.84-30,989.24-5,868.72

Finding the Fourth Proportional to 20,659.84, 30,989.24 and 5,868.72

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Solution

The fourth proportional to 20,659.84, 30,989.24 and 5,868.72 is: 8,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.84 : 30,989.24 = 5,868.72 : x
  2. Step 2: Convert to fraction form
    20,659.84/30,989.24 = 5,868.72/x
  3. Step 3: Cross multiply
    20,659.84x = 30,989.24 × 5,868.72
  4. Step 4: Simplify right side
    20,659.84x = 181,867,172.57
  5. Step 5: Solve for x
    x = 181,867,172.57/20,659.84
  6. Step 6: Final answer
    x = 8,802.93

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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.