Home / 20,177.92-30,203.04-11,386.72

Finding the Fourth Proportional to 20,177.92, 30,203.04 and 11,386.72

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Solution

The fourth proportional to 20,177.92, 30,203.04 and 11,386.72 is: 17,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.92 : 30,203.04 = 11,386.72 : x
  2. Step 2: Convert to fraction form
    20,177.92/30,203.04 = 11,386.72/x
  3. Step 3: Cross multiply
    20,177.92x = 30,203.04 × 11,386.72
  4. Step 4: Simplify right side
    20,177.92x = 343,913,559.63
  5. Step 5: Solve for x
    x = 343,913,559.63/20,177.92
  6. Step 6: Final answer
    x = 17,044.05

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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.