Home / 28,258.59-38,997.33-15,512.97

Finding the Fourth Proportional to 28,258.59, 38,997.33 and 15,512.97

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Solution

The fourth proportional to 28,258.59, 38,997.33 and 15,512.97 is: 21,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.59 : 38,997.33 = 15,512.97 : x
  2. Step 2: Convert to fraction form
    28,258.59/38,997.33 = 15,512.97/x
  3. Step 3: Cross multiply
    28,258.59x = 38,997.33 × 15,512.97
  4. Step 4: Simplify right side
    28,258.59x = 604,964,410.37
  5. Step 5: Solve for x
    x = 604,964,410.37/28,258.59
  6. Step 6: Final answer
    x = 21,408.16

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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.