Home / 21,732.06-32,403.40-21,338.40

Finding the Fourth Proportional to 21,732.06, 32,403.40 and 21,338.40

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Solution

The fourth proportional to 21,732.06, 32,403.40 and 21,338.40 is: 31,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,732.06 : 32,403.40 = 21,338.40 : x
  2. Step 2: Convert to fraction form
    21,732.06/32,403.40 = 21,338.40/x
  3. Step 3: Cross multiply
    21,732.06x = 32,403.40 × 21,338.40
  4. Step 4: Simplify right side
    21,732.06x = 691,436,710.56
  5. Step 5: Solve for x
    x = 691,436,710.56/21,732.06
  6. Step 6: Final answer
    x = 31,816.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.