Home / 18,581.32-27,999.83-15,366.70

Finding the Fourth Proportional to 18,581.32, 27,999.83 and 15,366.70

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Solution

The fourth proportional to 18,581.32, 27,999.83 and 15,366.70 is: 23,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.32 : 27,999.83 = 15,366.70 : x
  2. Step 2: Convert to fraction form
    18,581.32/27,999.83 = 15,366.70/x
  3. Step 3: Cross multiply
    18,581.32x = 27,999.83 × 15,366.70
  4. Step 4: Simplify right side
    18,581.32x = 430,264,987.66
  5. Step 5: Solve for x
    x = 430,264,987.66/18,581.32
  6. Step 6: Final answer
    x = 23,155.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.