Home / 21,959.99-32,972.78-21,631.94

Finding the Fourth Proportional to 21,959.99, 32,972.78 and 21,631.94

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Solution

The fourth proportional to 21,959.99, 32,972.78 and 21,631.94 is: 32,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.99 : 32,972.78 = 21,631.94 : x
  2. Step 2: Convert to fraction form
    21,959.99/32,972.78 = 21,631.94/x
  3. Step 3: Cross multiply
    21,959.99x = 32,972.78 × 21,631.94
  4. Step 4: Simplify right side
    21,959.99x = 713,265,033.73
  5. Step 5: Solve for x
    x = 713,265,033.73/21,959.99
  6. Step 6: Final answer
    x = 32,480.21

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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.