Home / 20,016.72-30,015-6,685.02

Finding the Fourth Proportional to 20,016.72, 30,015 and 6,685.02

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Solution

The fourth proportional to 20,016.72, 30,015 and 6,685.02 is: 10,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.72 : 30,015 = 6,685.02 : x
  2. Step 2: Convert to fraction form
    20,016.72/30,015 = 6,685.02/x
  3. Step 3: Cross multiply
    20,016.72x = 30,015 × 6,685.02
  4. Step 4: Simplify right side
    20,016.72x = 200,650,875.30
  5. Step 5: Solve for x
    x = 200,650,875.30/20,016.72
  6. Step 6: Final answer
    x = 10,024.16

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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.