Home / 20,749.04-31,108.92-10,353.44

Finding the Fourth Proportional to 20,749.04, 31,108.92 and 10,353.44

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Solution

The fourth proportional to 20,749.04, 31,108.92 and 10,353.44 is: 15,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.04 : 31,108.92 = 10,353.44 : x
  2. Step 2: Convert to fraction form
    20,749.04/31,108.92 = 10,353.44/x
  3. Step 3: Cross multiply
    20,749.04x = 31,108.92 × 10,353.44
  4. Step 4: Simplify right side
    20,749.04x = 322,084,336.68
  5. Step 5: Solve for x
    x = 322,084,336.68/20,749.04
  6. Step 6: Final answer
    x = 15,522.85

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1.5x scale

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.