Home / 39,395.23-54,369.93-21,934.31

Finding the Fourth Proportional to 39,395.23, 54,369.93 and 21,934.31

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Solution

The fourth proportional to 39,395.23, 54,369.93 and 21,934.31 is: 30,271.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.23 : 54,369.93 = 21,934.31 : x
  2. Step 2: Convert to fraction form
    39,395.23/54,369.93 = 21,934.31/x
  3. Step 3: Cross multiply
    39,395.23x = 54,369.93 × 21,934.31
  4. Step 4: Simplify right side
    39,395.23x = 1,192,566,709.70
  5. Step 5: Solve for x
    x = 1,192,566,709.70/39,395.23
  6. Step 6: Final answer
    x = 30,271.86

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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.