Home / 22,276.67-30,782.36-21,196.99

Finding the Fourth Proportional to 22,276.67, 30,782.36 and 21,196.99

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Solution

The fourth proportional to 22,276.67, 30,782.36 and 21,196.99 is: 29,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.67 : 30,782.36 = 21,196.99 : x
  2. Step 2: Convert to fraction form
    22,276.67/30,782.36 = 21,196.99/x
  3. Step 3: Cross multiply
    22,276.67x = 30,782.36 × 21,196.99
  4. Step 4: Simplify right side
    22,276.67x = 652,493,271.11
  5. Step 5: Solve for x
    x = 652,493,271.11/22,276.67
  6. Step 6: Final answer
    x = 29,290.43

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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.