Home / 25,825.28-38,750.72-11,971.84

Finding the Fourth Proportional to 25,825.28, 38,750.72 and 11,971.84

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Solution

The fourth proportional to 25,825.28, 38,750.72 and 11,971.84 is: 17,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.28 : 38,750.72 = 11,971.84 : x
  2. Step 2: Convert to fraction form
    25,825.28/38,750.72 = 11,971.84/x
  3. Step 3: Cross multiply
    25,825.28x = 38,750.72 × 11,971.84
  4. Step 4: Simplify right side
    25,825.28x = 463,917,419.72
  5. Step 5: Solve for x
    x = 463,917,419.72/25,825.28
  6. Step 6: Final answer
    x = 17,963.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.