Home / 20,129.73-30,191.14-5,340.14

Finding the Fourth Proportional to 20,129.73, 30,191.14 and 5,340.14

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Solution

The fourth proportional to 20,129.73, 30,191.14 and 5,340.14 is: 8,009.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129.73 : 30,191.14 = 5,340.14 : x
  2. Step 2: Convert to fraction form
    20,129.73/30,191.14 = 5,340.14/x
  3. Step 3: Cross multiply
    20,129.73x = 30,191.14 × 5,340.14
  4. Step 4: Simplify right side
    20,129.73x = 161,224,914.36
  5. Step 5: Solve for x
    x = 161,224,914.36/20,129.73
  6. Step 6: Final answer
    x = 8,009.29

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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.