Home / 39,323.10-54,266.52-21,418.45

Finding the Fourth Proportional to 39,323.10, 54,266.52 and 21,418.45

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Solution

The fourth proportional to 39,323.10, 54,266.52 and 21,418.45 is: 29,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,323.10 : 54,266.52 = 21,418.45 : x
  2. Step 2: Convert to fraction form
    39,323.10/54,266.52 = 21,418.45/x
  3. Step 3: Cross multiply
    39,323.10x = 54,266.52 × 21,418.45
  4. Step 4: Simplify right side
    39,323.10x = 1,162,304,745.29
  5. Step 5: Solve for x
    x = 1,162,304,745.29/39,323.10
  6. Step 6: Final answer
    x = 29,557.81

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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.