Home / 28,179.26-38,887.44-15,258.68

Finding the Fourth Proportional to 28,179.26, 38,887.44 and 15,258.68

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Solution

The fourth proportional to 28,179.26, 38,887.44 and 15,258.68 is: 21,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.26 : 38,887.44 = 15,258.68 : x
  2. Step 2: Convert to fraction form
    28,179.26/38,887.44 = 15,258.68/x
  3. Step 3: Cross multiply
    28,179.26x = 38,887.44 × 15,258.68
  4. Step 4: Simplify right side
    28,179.26x = 593,370,808.54
  5. Step 5: Solve for x
    x = 593,370,808.54/28,179.26
  6. Step 6: Final answer
    x = 21,057.00

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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.