Home / 20,400.15-30,600.23-7,267.35

Finding the Fourth Proportional to 20,400.15, 30,600.23 and 7,267.35

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Solution

The fourth proportional to 20,400.15, 30,600.23 and 7,267.35 is: 10,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.15 : 30,600.23 = 7,267.35 : x
  2. Step 2: Convert to fraction form
    20,400.15/30,600.23 = 7,267.35/x
  3. Step 3: Cross multiply
    20,400.15x = 30,600.23 × 7,267.35
  4. Step 4: Simplify right side
    20,400.15x = 222,382,545.15
  5. Step 5: Solve for x
    x = 222,382,545.15/20,400.15
  6. Step 6: Final answer
    x = 10,901.03

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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.