Home / 25,724.99-38,588.97-9,930.09

Finding the Fourth Proportional to 25,724.99, 38,588.97 and 9,930.09

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Solution

The fourth proportional to 25,724.99, 38,588.97 and 9,930.09 is: 14,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,724.99 : 38,588.97 = 9,930.09 : x
  2. Step 2: Convert to fraction form
    25,724.99/38,588.97 = 9,930.09/x
  3. Step 3: Cross multiply
    25,724.99x = 38,588.97 × 9,930.09
  4. Step 4: Simplify right side
    25,724.99x = 383,191,945.11
  5. Step 5: Solve for x
    x = 383,191,945.11/25,724.99
  6. Step 6: Final answer
    x = 14,895.71

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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.