Home / 39,965.85-55,153.44-22,060.80

Finding the Fourth Proportional to 39,965.85, 55,153.44 and 22,060.80

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Solution

The fourth proportional to 39,965.85, 55,153.44 and 22,060.80 is: 30,444.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.85 : 55,153.44 = 22,060.80 : x
  2. Step 2: Convert to fraction form
    39,965.85/55,153.44 = 22,060.80/x
  3. Step 3: Cross multiply
    39,965.85x = 55,153.44 × 22,060.80
  4. Step 4: Simplify right side
    39,965.85x = 1,216,729,009.15
  5. Step 5: Solve for x
    x = 1,216,729,009.15/39,965.85
  6. Step 6: Final answer
    x = 30,444.22

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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.