Home / 20,400.47-30,582.25-7,249.77

Finding the Fourth Proportional to 20,400.47, 30,582.25 and 7,249.77

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Solution

The fourth proportional to 20,400.47, 30,582.25 and 7,249.77 is: 10,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.47 : 30,582.25 = 7,249.77 : x
  2. Step 2: Convert to fraction form
    20,400.47/30,582.25 = 7,249.77/x
  3. Step 3: Cross multiply
    20,400.47x = 30,582.25 × 7,249.77
  4. Step 4: Simplify right side
    20,400.47x = 221,714,260.46
  5. Step 5: Solve for x
    x = 221,714,260.46/20,400.47
  6. Step 6: Final answer
    x = 10,868.09

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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.