Home / 25,170.09-34,721.05-15,606.75

Finding the Fourth Proportional to 25,170.09, 34,721.05 and 15,606.75

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Solution

The fourth proportional to 25,170.09, 34,721.05 and 15,606.75 is: 21,528.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,170.09 : 34,721.05 = 15,606.75 : x
  2. Step 2: Convert to fraction form
    25,170.09/34,721.05 = 15,606.75/x
  3. Step 3: Cross multiply
    25,170.09x = 34,721.05 × 15,606.75
  4. Step 4: Simplify right side
    25,170.09x = 541,882,747.09
  5. Step 5: Solve for x
    x = 541,882,747.09/25,170.09
  6. Step 6: Final answer
    x = 21,528.84

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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.