Home / 25,758.97-38,643.99-7,989.25

Finding the Fourth Proportional to 25,758.97, 38,643.99 and 7,989.25

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Solution

The fourth proportional to 25,758.97, 38,643.99 and 7,989.25 is: 11,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,758.97 : 38,643.99 = 7,989.25 : x
  2. Step 2: Convert to fraction form
    25,758.97/38,643.99 = 7,989.25/x
  3. Step 3: Cross multiply
    25,758.97x = 38,643.99 × 7,989.25
  4. Step 4: Simplify right side
    25,758.97x = 308,736,497.11
  5. Step 5: Solve for x
    x = 308,736,497.11/25,758.97
  6. Step 6: Final answer
    x = 11,985.59

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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.