Home / 25,491.12-38,236.67-9,912.39

Finding the Fourth Proportional to 25,491.12, 38,236.67 and 9,912.39

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Solution

The fourth proportional to 25,491.12, 38,236.67 and 9,912.39 is: 14,868.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.12 : 38,236.67 = 9,912.39 : x
  2. Step 2: Convert to fraction form
    25,491.12/38,236.67 = 9,912.39/x
  3. Step 3: Cross multiply
    25,491.12x = 38,236.67 × 9,912.39
  4. Step 4: Simplify right side
    25,491.12x = 379,016,785.34
  5. Step 5: Solve for x
    x = 379,016,785.34/25,491.12
  6. Step 6: Final answer
    x = 14,868.58

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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.