Home / 38,385.06-52,974.63-21,621.30

Finding the Fourth Proportional to 38,385.06, 52,974.63 and 21,621.30

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Solution

The fourth proportional to 38,385.06, 52,974.63 and 21,621.30 is: 29,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.06 : 52,974.63 = 21,621.30 : x
  2. Step 2: Convert to fraction form
    38,385.06/52,974.63 = 21,621.30/x
  3. Step 3: Cross multiply
    38,385.06x = 52,974.63 × 21,621.30
  4. Step 4: Simplify right side
    38,385.06x = 1,145,380,367.62
  5. Step 5: Solve for x
    x = 1,145,380,367.62/38,385.06
  6. Step 6: Final answer
    x = 29,839.22

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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.