Home / 25,417.75-35,076.51-15,481.75

Finding the Fourth Proportional to 25,417.75, 35,076.51 and 15,481.75

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Solution

The fourth proportional to 25,417.75, 35,076.51 and 15,481.75 is: 21,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,417.75 : 35,076.51 = 15,481.75 : x
  2. Step 2: Convert to fraction form
    25,417.75/35,076.51 = 15,481.75/x
  3. Step 3: Cross multiply
    25,417.75x = 35,076.51 × 15,481.75
  4. Step 4: Simplify right side
    25,417.75x = 543,045,758.69
  5. Step 5: Solve for x
    x = 543,045,758.69/25,417.75
  6. Step 6: Final answer
    x = 21,364.82

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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.