Home / 21,778.56-32,594.40-11,891.52

Finding the Fourth Proportional to 21,778.56, 32,594.40 and 11,891.52

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Solution

The fourth proportional to 21,778.56, 32,594.40 and 11,891.52 is: 17,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.56 : 32,594.40 = 11,891.52 : x
  2. Step 2: Convert to fraction form
    21,778.56/32,594.40 = 11,891.52/x
  3. Step 3: Cross multiply
    21,778.56x = 32,594.40 × 11,891.52
  4. Step 4: Simplify right side
    21,778.56x = 387,596,959.49
  5. Step 5: Solve for x
    x = 387,596,959.49/21,778.56
  6. Step 6: Final answer
    x = 17,797.18

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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.