Home / 21,821.93-32,728.26-9,972.33

Finding the Fourth Proportional to 21,821.93, 32,728.26 and 9,972.33

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Solution

The fourth proportional to 21,821.93, 32,728.26 and 9,972.33 is: 14,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,821.93 : 32,728.26 = 9,972.33 : x
  2. Step 2: Convert to fraction form
    21,821.93/32,728.26 = 9,972.33/x
  3. Step 3: Cross multiply
    21,821.93x = 32,728.26 × 9,972.33
  4. Step 4: Simplify right side
    21,821.93x = 326,377,009.05
  5. Step 5: Solve for x
    x = 326,377,009.05/21,821.93
  6. Step 6: Final answer
    x = 14,956.38

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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.