Home / 27,439.32-37,879.35-18,380.28

Finding the Fourth Proportional to 27,439.32, 37,879.35 and 18,380.28

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Solution

The fourth proportional to 27,439.32, 37,879.35 and 18,380.28 is: 25,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.32 : 37,879.35 = 18,380.28 : x
  2. Step 2: Convert to fraction form
    27,439.32/37,879.35 = 18,380.28/x
  3. Step 3: Cross multiply
    27,439.32x = 37,879.35 × 18,380.28
  4. Step 4: Simplify right side
    27,439.32x = 696,233,059.22
  5. Step 5: Solve for x
    x = 696,233,059.22/27,439.32
  6. Step 6: Final answer
    x = 25,373.55

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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.