Home / 25,287.36-34,885.26-15,209.88

Finding the Fourth Proportional to 25,287.36, 34,885.26 and 15,209.88

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Solution

The fourth proportional to 25,287.36, 34,885.26 and 15,209.88 is: 20,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.36 : 34,885.26 = 15,209.88 : x
  2. Step 2: Convert to fraction form
    25,287.36/34,885.26 = 15,209.88/x
  3. Step 3: Cross multiply
    25,287.36x = 34,885.26 × 15,209.88
  4. Step 4: Simplify right side
    25,287.36x = 530,600,618.37
  5. Step 5: Solve for x
    x = 530,600,618.37/25,287.36
  6. Step 6: Final answer
    x = 20,982.84

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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.