Home / 28,005.92-38,647.58-15,258.97

Finding the Fourth Proportional to 28,005.92, 38,647.58 and 15,258.97

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Solution

The fourth proportional to 28,005.92, 38,647.58 and 15,258.97 is: 21,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.92 : 38,647.58 = 15,258.97 : x
  2. Step 2: Convert to fraction form
    28,005.92/38,647.58 = 15,258.97/x
  3. Step 3: Cross multiply
    28,005.92x = 38,647.58 × 15,258.97
  4. Step 4: Simplify right side
    28,005.92x = 589,722,263.79
  5. Step 5: Solve for x
    x = 589,722,263.79/28,005.92
  6. Step 6: Final answer
    x = 21,057.06

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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.