Home / 20,015.85-30,023.80-5,224.75

Finding the Fourth Proportional to 20,015.85, 30,023.80 and 5,224.75

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Solution

The fourth proportional to 20,015.85, 30,023.80 and 5,224.75 is: 7,837.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.85 : 30,023.80 = 5,224.75 : x
  2. Step 2: Convert to fraction form
    20,015.85/30,023.80 = 5,224.75/x
  3. Step 3: Cross multiply
    20,015.85x = 30,023.80 × 5,224.75
  4. Step 4: Simplify right side
    20,015.85x = 156,866,760.93
  5. Step 5: Solve for x
    x = 156,866,760.93/20,015.85
  6. Step 6: Final answer
    x = 7,837.13

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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.