Home / 20,071.80-30,095.55-8,976.42

Finding the Fourth Proportional to 20,071.80, 30,095.55 and 8,976.42

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Solution

The fourth proportional to 20,071.80, 30,095.55 and 8,976.42 is: 13,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.80 : 30,095.55 = 8,976.42 : x
  2. Step 2: Convert to fraction form
    20,071.80/30,095.55 = 8,976.42/x
  3. Step 3: Cross multiply
    20,071.80x = 30,095.55 × 8,976.42
  4. Step 4: Simplify right side
    20,071.80x = 270,150,296.93
  5. Step 5: Solve for x
    x = 270,150,296.93/20,071.80
  6. Step 6: Final answer
    x = 13,459.20

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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.