Home / 20,204.59-30,275.45-7,717.80

Finding the Fourth Proportional to 20,204.59, 30,275.45 and 7,717.80

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Solution

The fourth proportional to 20,204.59, 30,275.45 and 7,717.80 is: 11,564.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.59 : 30,275.45 = 7,717.80 : x
  2. Step 2: Convert to fraction form
    20,204.59/30,275.45 = 7,717.80/x
  3. Step 3: Cross multiply
    20,204.59x = 30,275.45 × 7,717.80
  4. Step 4: Simplify right side
    20,204.59x = 233,659,829.42
  5. Step 5: Solve for x
    x = 233,659,829.42/20,204.59
  6. Step 6: Final answer
    x = 11,564.69

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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.