Home / 21,354.20-32,191.48-19,927

Finding the Fourth Proportional to 21,354.20, 32,191.48 and 19,927

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Solution

The fourth proportional to 21,354.20, 32,191.48 and 19,927 is: 30,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.20 : 32,191.48 = 19,927 : x
  2. Step 2: Convert to fraction form
    21,354.20/32,191.48 = 19,927/x
  3. Step 3: Cross multiply
    21,354.20x = 32,191.48 × 19,927
  4. Step 4: Simplify right side
    21,354.20x = 641,479,621.96
  5. Step 5: Solve for x
    x = 641,479,621.96/21,354.20
  6. Step 6: Final answer
    x = 30,039.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.