Home / 39,323.28-54,266.22-21,418.38

Finding the Fourth Proportional to 39,323.28, 54,266.22 and 21,418.38

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Solution

The fourth proportional to 39,323.28, 54,266.22 and 21,418.38 is: 29,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,323.28 : 54,266.22 = 21,418.38 : x
  2. Step 2: Convert to fraction form
    39,323.28/54,266.22 = 21,418.38/x
  3. Step 3: Cross multiply
    39,323.28x = 54,266.22 × 21,418.38
  4. Step 4: Simplify right side
    39,323.28x = 1,162,294,521.12
  5. Step 5: Solve for x
    x = 1,162,294,521.12/39,323.28
  6. Step 6: Final answer
    x = 29,557.42

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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.