Home / 25,409.94-38,118.58-7,881.18

Finding the Fourth Proportional to 25,409.94, 38,118.58 and 7,881.18

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Solution

The fourth proportional to 25,409.94, 38,118.58 and 7,881.18 is: 11,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,409.94 : 38,118.58 = 7,881.18 : x
  2. Step 2: Convert to fraction form
    25,409.94/38,118.58 = 7,881.18/x
  3. Step 3: Cross multiply
    25,409.94x = 38,118.58 × 7,881.18
  4. Step 4: Simplify right side
    25,409.94x = 300,419,390.32
  5. Step 5: Solve for x
    x = 300,419,390.32/25,409.94
  6. Step 6: Final answer
    x = 11,822.91

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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.