Home / 20,077.14-30,113.15-5,287.20

Finding the Fourth Proportional to 20,077.14, 30,113.15 and 5,287.20

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Solution

The fourth proportional to 20,077.14, 30,113.15 and 5,287.20 is: 7,930.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.14 : 30,113.15 = 5,287.20 : x
  2. Step 2: Convert to fraction form
    20,077.14/30,113.15 = 5,287.20/x
  3. Step 3: Cross multiply
    20,077.14x = 30,113.15 × 5,287.20
  4. Step 4: Simplify right side
    20,077.14x = 159,214,107.32
  5. Step 5: Solve for x
    x = 159,214,107.32/20,077.14
  6. Step 6: Final answer
    x = 7,930.12

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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.