Home / 20,079.14-30,116.14-5,289.20

Finding the Fourth Proportional to 20,079.14, 30,116.14 and 5,289.20

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Solution

The fourth proportional to 20,079.14, 30,116.14 and 5,289.20 is: 7,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.14 : 30,116.14 = 5,289.20 : x
  2. Step 2: Convert to fraction form
    20,079.14/30,116.14 = 5,289.20/x
  3. Step 3: Cross multiply
    20,079.14x = 30,116.14 × 5,289.20
  4. Step 4: Simplify right side
    20,079.14x = 159,290,287.69
  5. Step 5: Solve for x
    x = 159,290,287.69/20,079.14
  6. Step 6: Final answer
    x = 7,933.12

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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.