Home / 22,118.40-30,489.60-19,148.80

Finding the Fourth Proportional to 22,118.40, 30,489.60 and 19,148.80

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Solution

The fourth proportional to 22,118.40, 30,489.60 and 19,148.80 is: 26,396.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.40 : 30,489.60 = 19,148.80 : x
  2. Step 2: Convert to fraction form
    22,118.40/30,489.60 = 19,148.80/x
  3. Step 3: Cross multiply
    22,118.40x = 30,489.60 × 19,148.80
  4. Step 4: Simplify right side
    22,118.40x = 583,839,252.48
  5. Step 5: Solve for x
    x = 583,839,252.48/22,118.40
  6. Step 6: Final answer
    x = 26,396.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.