Home / 25,485.84-35,170.92-15,412.56

Finding the Fourth Proportional to 25,485.84, 35,170.92 and 15,412.56

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Solution

The fourth proportional to 25,485.84, 35,170.92 and 15,412.56 is: 21,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,485.84 : 35,170.92 = 15,412.56 : x
  2. Step 2: Convert to fraction form
    25,485.84/35,170.92 = 15,412.56/x
  3. Step 3: Cross multiply
    25,485.84x = 35,170.92 × 15,412.56
  4. Step 4: Simplify right side
    25,485.84x = 542,073,914.76
  5. Step 5: Solve for x
    x = 542,073,914.76/25,485.84
  6. Step 6: Final answer
    x = 21,269.61

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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.