Home / 20,303.11-30,454.64-5,514.20

Finding the Fourth Proportional to 20,303.11, 30,454.64 and 5,514.20

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Solution

The fourth proportional to 20,303.11, 30,454.64 and 5,514.20 is: 8,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.11 : 30,454.64 = 5,514.20 : x
  2. Step 2: Convert to fraction form
    20,303.11/30,454.64 = 5,514.20/x
  3. Step 3: Cross multiply
    20,303.11x = 30,454.64 × 5,514.20
  4. Step 4: Simplify right side
    20,303.11x = 167,932,796.04
  5. Step 5: Solve for x
    x = 167,932,796.04/20,303.11
  6. Step 6: Final answer
    x = 8,271.29

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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.