Home / 25,942.57-38,900.77-11,890.75

Finding the Fourth Proportional to 25,942.57, 38,900.77 and 11,890.75

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Solution

The fourth proportional to 25,942.57, 38,900.77 and 11,890.75 is: 17,830.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,942.57 : 38,900.77 = 11,890.75 : x
  2. Step 2: Convert to fraction form
    25,942.57/38,900.77 = 11,890.75/x
  3. Step 3: Cross multiply
    25,942.57x = 38,900.77 × 11,890.75
  4. Step 4: Simplify right side
    25,942.57x = 462,559,330.88
  5. Step 5: Solve for x
    x = 462,559,330.88/25,942.57
  6. Step 6: Final answer
    x = 17,830.13

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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.