Home / 25,479.40-38,220.54-7,951.72

Finding the Fourth Proportional to 25,479.40, 38,220.54 and 7,951.72

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Solution

The fourth proportional to 25,479.40, 38,220.54 and 7,951.72 is: 11,928.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,479.40 : 38,220.54 = 7,951.72 : x
  2. Step 2: Convert to fraction form
    25,479.40/38,220.54 = 7,951.72/x
  3. Step 3: Cross multiply
    25,479.40x = 38,220.54 × 7,951.72
  4. Step 4: Simplify right side
    25,479.40x = 303,919,032.33
  5. Step 5: Solve for x
    x = 303,919,032.33/25,479.40
  6. Step 6: Final answer
    x = 11,928.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.