Home / 20,724.21-31,077.18-5,929.76

Finding the Fourth Proportional to 20,724.21, 31,077.18 and 5,929.76

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Solution

The fourth proportional to 20,724.21, 31,077.18 and 5,929.76 is: 8,892.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.21 : 31,077.18 = 5,929.76 : x
  2. Step 2: Convert to fraction form
    20,724.21/31,077.18 = 5,929.76/x
  3. Step 3: Cross multiply
    20,724.21x = 31,077.18 × 5,929.76
  4. Step 4: Simplify right side
    20,724.21x = 184,280,296.57
  5. Step 5: Solve for x
    x = 184,280,296.57/20,724.21
  6. Step 6: Final answer
    x = 8,892.03

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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.