Home / 28,178.92-38,886.98-15,258.33

Finding the Fourth Proportional to 28,178.92, 38,886.98 and 15,258.33

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Solution

The fourth proportional to 28,178.92, 38,886.98 and 15,258.33 is: 21,056.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.92 : 38,886.98 = 15,258.33 : x
  2. Step 2: Convert to fraction form
    28,178.92/38,886.98 = 15,258.33/x
  3. Step 3: Cross multiply
    28,178.92x = 38,886.98 × 15,258.33
  4. Step 4: Simplify right side
    28,178.92x = 593,350,373.54
  5. Step 5: Solve for x
    x = 593,350,373.54/28,178.92
  6. Step 6: Final answer
    x = 21,056.53

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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.