Home / 40,486.84-55,907.01-25,405.65

Finding the Fourth Proportional to 40,486.84, 55,907.01 and 25,405.65

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Solution

The fourth proportional to 40,486.84, 55,907.01 and 25,405.65 is: 35,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,486.84 : 55,907.01 = 25,405.65 : x
  2. Step 2: Convert to fraction form
    40,486.84/55,907.01 = 25,405.65/x
  3. Step 3: Cross multiply
    40,486.84x = 55,907.01 × 25,405.65
  4. Step 4: Simplify right side
    40,486.84x = 1,420,353,928.61
  5. Step 5: Solve for x
    x = 1,420,353,928.61/40,486.84
  6. Step 6: Final answer
    x = 35,081.87

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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.