Home / 25,680.60-38,519.14-7,212.60

Finding the Fourth Proportional to 25,680.60, 38,519.14 and 7,212.60

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Solution

The fourth proportional to 25,680.60, 38,519.14 and 7,212.60 is: 10,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.60 : 38,519.14 = 7,212.60 : x
  2. Step 2: Convert to fraction form
    25,680.60/38,519.14 = 7,212.60/x
  3. Step 3: Cross multiply
    25,680.60x = 38,519.14 × 7,212.60
  4. Step 4: Simplify right side
    25,680.60x = 277,823,149.16
  5. Step 5: Solve for x
    x = 277,823,149.16/25,680.60
  6. Step 6: Final answer
    x = 10,818.41

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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.