Home / 39,353.69-54,306.50-21,448.31

Finding the Fourth Proportional to 39,353.69, 54,306.50 and 21,448.31

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Solution

The fourth proportional to 39,353.69, 54,306.50 and 21,448.31 is: 29,597.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,353.69 : 54,306.50 = 21,448.31 : x
  2. Step 2: Convert to fraction form
    39,353.69/54,306.50 = 21,448.31/x
  3. Step 3: Cross multiply
    39,353.69x = 54,306.50 × 21,448.31
  4. Step 4: Simplify right side
    39,353.69x = 1,164,782,429.10
  5. Step 5: Solve for x
    x = 1,164,782,429.10/39,353.69
  6. Step 6: Final answer
    x = 29,597.79

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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.