Home / 20,552.80-30,833.20-7,406.24

Finding the Fourth Proportional to 20,552.80, 30,833.20 and 7,406.24

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Solution

The fourth proportional to 20,552.80, 30,833.20 and 7,406.24 is: 11,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.80 : 30,833.20 = 7,406.24 : x
  2. Step 2: Convert to fraction form
    20,552.80/30,833.20 = 7,406.24/x
  3. Step 3: Cross multiply
    20,552.80x = 30,833.20 × 7,406.24
  4. Step 4: Simplify right side
    20,552.80x = 228,358,079.17
  5. Step 5: Solve for x
    x = 228,358,079.17/20,552.80
  6. Step 6: Final answer
    x = 11,110.80

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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.