Home / 39,228.22-54,136-21,324.44

Finding the Fourth Proportional to 39,228.22, 54,136 and 21,324.44

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Solution

The fourth proportional to 39,228.22, 54,136 and 21,324.44 is: 29,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228.22 : 54,136 = 21,324.44 : x
  2. Step 2: Convert to fraction form
    39,228.22/54,136 = 21,324.44/x
  3. Step 3: Cross multiply
    39,228.22x = 54,136 × 21,324.44
  4. Step 4: Simplify right side
    39,228.22x = 1,154,419,883.84
  5. Step 5: Solve for x
    x = 1,154,419,883.84/39,228.22
  6. Step 6: Final answer
    x = 29,428.30

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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.