Home / 38,390.04-57,560.22-18,388.80

Finding the Fourth Proportional to 38,390.04, 57,560.22 and 18,388.80

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Solution

The fourth proportional to 38,390.04, 57,560.22 and 18,388.80 is: 27,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.04 : 57,560.22 = 18,388.80 : x
  2. Step 2: Convert to fraction form
    38,390.04/57,560.22 = 18,388.80/x
  3. Step 3: Cross multiply
    38,390.04x = 57,560.22 × 18,388.80
  4. Step 4: Simplify right side
    38,390.04x = 1,058,463,373.54
  5. Step 5: Solve for x
    x = 1,058,463,373.54/38,390.04
  6. Step 6: Final answer
    x = 27,571.30

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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.