Home / 25,971.11-38,961.52-10,389.95

Finding the Fourth Proportional to 25,971.11, 38,961.52 and 10,389.95

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Solution

The fourth proportional to 25,971.11, 38,961.52 and 10,389.95 is: 15,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,971.11 : 38,961.52 = 10,389.95 : x
  2. Step 2: Convert to fraction form
    25,971.11/38,961.52 = 10,389.95/x
  3. Step 3: Cross multiply
    25,971.11x = 38,961.52 × 10,389.95
  4. Step 4: Simplify right side
    25,971.11x = 404,808,023.94
  5. Step 5: Solve for x
    x = 404,808,023.94/25,971.11
  6. Step 6: Final answer
    x = 15,586.86

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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.