Home / 20,191.08-30,284.76-5,399.48

Finding the Fourth Proportional to 20,191.08, 30,284.76 and 5,399.48

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Solution

The fourth proportional to 20,191.08, 30,284.76 and 5,399.48 is: 8,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.08 : 30,284.76 = 5,399.48 : x
  2. Step 2: Convert to fraction form
    20,191.08/30,284.76 = 5,399.48/x
  3. Step 3: Cross multiply
    20,191.08x = 30,284.76 × 5,399.48
  4. Step 4: Simplify right side
    20,191.08x = 163,521,955.92
  5. Step 5: Solve for x
    x = 163,521,955.92/20,191.08
  6. Step 6: Final answer
    x = 8,098.72

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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.