Home / 39,378.58-54,352.80-22,392.78

Finding the Fourth Proportional to 39,378.58, 54,352.80 and 22,392.78

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Solution

The fourth proportional to 39,378.58, 54,352.80 and 22,392.78 is: 30,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.58 : 54,352.80 = 22,392.78 : x
  2. Step 2: Convert to fraction form
    39,378.58/54,352.80 = 22,392.78/x
  3. Step 3: Cross multiply
    39,378.58x = 54,352.80 × 22,392.78
  4. Step 4: Simplify right side
    39,378.58x = 1,217,110,292.78
  5. Step 5: Solve for x
    x = 1,217,110,292.78/39,378.58
  6. Step 6: Final answer
    x = 30,907.93

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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.