Home / 20,298.80-30,449.64-5,507.44

Finding the Fourth Proportional to 20,298.80, 30,449.64 and 5,507.44

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Solution

The fourth proportional to 20,298.80, 30,449.64 and 5,507.44 is: 8,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.80 : 30,449.64 = 5,507.44 : x
  2. Step 2: Convert to fraction form
    20,298.80/30,449.64 = 5,507.44/x
  3. Step 3: Cross multiply
    20,298.80x = 30,449.64 × 5,507.44
  4. Step 4: Simplify right side
    20,298.80x = 167,699,565.32
  5. Step 5: Solve for x
    x = 167,699,565.32/20,298.80
  6. Step 6: Final answer
    x = 8,261.55

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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.