Home / 20,271.06-30,397.23-15,879.06

Finding the Fourth Proportional to 20,271.06, 30,397.23 and 15,879.06

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Solution

The fourth proportional to 20,271.06, 30,397.23 and 15,879.06 is: 23,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.06 : 30,397.23 = 15,879.06 : x
  2. Step 2: Convert to fraction form
    20,271.06/30,397.23 = 15,879.06/x
  3. Step 3: Cross multiply
    20,271.06x = 30,397.23 × 15,879.06
  4. Step 4: Simplify right side
    20,271.06x = 482,679,439.00
  5. Step 5: Solve for x
    x = 482,679,439.00/20,271.06
  6. Step 6: Final answer
    x = 23,811.26

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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.