Home / 19,080.96-28,620.80-5,229.92

Finding the Fourth Proportional to 19,080.96, 28,620.80 and 5,229.92

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Solution

The fourth proportional to 19,080.96, 28,620.80 and 5,229.92 is: 7,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.96 : 28,620.80 = 5,229.92 : x
  2. Step 2: Convert to fraction form
    19,080.96/28,620.80 = 5,229.92/x
  3. Step 3: Cross multiply
    19,080.96x = 28,620.80 × 5,229.92
  4. Step 4: Simplify right side
    19,080.96x = 149,684,494.34
  5. Step 5: Solve for x
    x = 149,684,494.34/19,080.96
  6. Step 6: Final answer
    x = 7,844.70

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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.