Home / 39,907.20-55,061.28-25,768.32

Finding the Fourth Proportional to 39,907.20, 55,061.28 and 25,768.32

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Solution

The fourth proportional to 39,907.20, 55,061.28 and 25,768.32 is: 35,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,907.20 : 55,061.28 = 25,768.32 : x
  2. Step 2: Convert to fraction form
    39,907.20/55,061.28 = 25,768.32/x
  3. Step 3: Cross multiply
    39,907.20x = 55,061.28 × 25,768.32
  4. Step 4: Simplify right side
    39,907.20x = 1,418,836,682.65
  5. Step 5: Solve for x
    x = 1,418,836,682.65/39,907.20
  6. Step 6: Final answer
    x = 35,553.40

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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.