Home / 21,934.40-32,805.60-19,611.20

Finding the Fourth Proportional to 21,934.40, 32,805.60 and 19,611.20

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Solution

The fourth proportional to 21,934.40, 32,805.60 and 19,611.20 is: 29,330.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.40 : 32,805.60 = 19,611.20 : x
  2. Step 2: Convert to fraction form
    21,934.40/32,805.60 = 19,611.20/x
  3. Step 3: Cross multiply
    21,934.40x = 32,805.60 × 19,611.20
  4. Step 4: Simplify right side
    21,934.40x = 643,357,182.72
  5. Step 5: Solve for x
    x = 643,357,182.72/21,934.40
  6. Step 6: Final answer
    x = 29,330.97

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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.