Home / 20,076.44-30,116.19-5,285.13

Finding the Fourth Proportional to 20,076.44, 30,116.19 and 5,285.13

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Solution

The fourth proportional to 20,076.44, 30,116.19 and 5,285.13 is: 7,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.44 : 30,116.19 = 5,285.13 : x
  2. Step 2: Convert to fraction form
    20,076.44/30,116.19 = 5,285.13/x
  3. Step 3: Cross multiply
    20,076.44x = 30,116.19 × 5,285.13
  4. Step 4: Simplify right side
    20,076.44x = 159,167,979.25
  5. Step 5: Solve for x
    x = 159,167,979.25/20,076.44
  6. Step 6: Final answer
    x = 7,928.10

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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.