Home / 20,324.16-28,191.04-19,784.96

Finding the Fourth Proportional to 20,324.16, 28,191.04 and 19,784.96

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Solution

The fourth proportional to 20,324.16, 28,191.04 and 19,784.96 is: 27,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.16 : 28,191.04 = 19,784.96 : x
  2. Step 2: Convert to fraction form
    20,324.16/28,191.04 = 19,784.96/x
  3. Step 3: Cross multiply
    20,324.16x = 28,191.04 × 19,784.96
  4. Step 4: Simplify right side
    20,324.16x = 557,758,598.76
  5. Step 5: Solve for x
    x = 557,758,598.76/20,324.16
  6. Step 6: Final answer
    x = 27,443.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.