Home / 20,301.74-30,451.92-7,153.76

Finding the Fourth Proportional to 20,301.74, 30,451.92 and 7,153.76

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Solution

The fourth proportional to 20,301.74, 30,451.92 and 7,153.76 is: 10,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.74 : 30,451.92 = 7,153.76 : x
  2. Step 2: Convert to fraction form
    20,301.74/30,451.92 = 7,153.76/x
  3. Step 3: Cross multiply
    20,301.74x = 30,451.92 × 7,153.76
  4. Step 4: Simplify right side
    20,301.74x = 217,845,727.22
  5. Step 5: Solve for x
    x = 217,845,727.22/20,301.74
  6. Step 6: Final answer
    x = 10,730.40

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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.