Home / 20,734.49-31,101.60-5,152.07

Finding the Fourth Proportional to 20,734.49, 31,101.60 and 5,152.07

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Solution

The fourth proportional to 20,734.49, 31,101.60 and 5,152.07 is: 7,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.49 : 31,101.60 = 5,152.07 : x
  2. Step 2: Convert to fraction form
    20,734.49/31,101.60 = 5,152.07/x
  3. Step 3: Cross multiply
    20,734.49x = 31,101.60 × 5,152.07
  4. Step 4: Simplify right side
    20,734.49x = 160,237,620.31
  5. Step 5: Solve for x
    x = 160,237,620.31/20,734.49
  6. Step 6: Final answer
    x = 7,728.07

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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.