Home / 20,180.48-30,276.90-10,326.76

Finding the Fourth Proportional to 20,180.48, 30,276.90 and 10,326.76

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Solution

The fourth proportional to 20,180.48, 30,276.90 and 10,326.76 is: 15,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.48 : 30,276.90 = 10,326.76 : x
  2. Step 2: Convert to fraction form
    20,180.48/30,276.90 = 10,326.76/x
  3. Step 3: Cross multiply
    20,180.48x = 30,276.90 × 10,326.76
  4. Step 4: Simplify right side
    20,180.48x = 312,662,279.84
  5. Step 5: Solve for x
    x = 312,662,279.84/20,180.48
  6. Step 6: Final answer
    x = 15,493.30

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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.