Home / 40,302.20-55,612.04-22,400.94

Finding the Fourth Proportional to 40,302.20, 55,612.04 and 22,400.94

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Solution

The fourth proportional to 40,302.20, 55,612.04 and 22,400.94 is: 30,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302.20 : 55,612.04 = 22,400.94 : x
  2. Step 2: Convert to fraction form
    40,302.20/55,612.04 = 22,400.94/x
  3. Step 3: Cross multiply
    40,302.20x = 55,612.04 × 22,400.94
  4. Step 4: Simplify right side
    40,302.20x = 1,245,761,971.32
  5. Step 5: Solve for x
    x = 1,245,761,971.32/40,302.20
  6. Step 6: Final answer
    x = 30,910.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.