Home / 39,278.16-54,203.40-25,868.88

Finding the Fourth Proportional to 39,278.16, 54,203.40 and 25,868.88

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Solution

The fourth proportional to 39,278.16, 54,203.40 and 25,868.88 is: 35,698.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.16 : 54,203.40 = 25,868.88 : x
  2. Step 2: Convert to fraction form
    39,278.16/54,203.40 = 25,868.88/x
  3. Step 3: Cross multiply
    39,278.16x = 54,203.40 × 25,868.88
  4. Step 4: Simplify right side
    39,278.16x = 1,402,181,250.19
  5. Step 5: Solve for x
    x = 1,402,181,250.19/39,278.16
  6. Step 6: Final answer
    x = 35,698.75

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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.