Home / 25,836.76-38,748.05-7,112.40

Finding the Fourth Proportional to 25,836.76, 38,748.05 and 7,112.40

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Solution

The fourth proportional to 25,836.76, 38,748.05 and 7,112.40 is: 10,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,836.76 : 38,748.05 = 7,112.40 : x
  2. Step 2: Convert to fraction form
    25,836.76/38,748.05 = 7,112.40/x
  3. Step 3: Cross multiply
    25,836.76x = 38,748.05 × 7,112.40
  4. Step 4: Simplify right side
    25,836.76x = 275,591,630.82
  5. Step 5: Solve for x
    x = 275,591,630.82/25,836.76
  6. Step 6: Final answer
    x = 10,666.65

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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.