Home / 40,060.60-55,281.96-21,911.04

Finding the Fourth Proportional to 40,060.60, 55,281.96 and 21,911.04

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Solution

The fourth proportional to 40,060.60, 55,281.96 and 21,911.04 is: 30,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,060.60 : 55,281.96 = 21,911.04 : x
  2. Step 2: Convert to fraction form
    40,060.60/55,281.96 = 21,911.04/x
  3. Step 3: Cross multiply
    40,060.60x = 55,281.96 × 21,911.04
  4. Step 4: Simplify right side
    40,060.60x = 1,211,285,236.84
  5. Step 5: Solve for x
    x = 1,211,285,236.84/40,060.60
  6. Step 6: Final answer
    x = 30,236.32

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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.