Home / 25,581.54-38,369.88-8,938.50

Finding the Fourth Proportional to 25,581.54, 38,369.88 and 8,938.50

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Solution

The fourth proportional to 25,581.54, 38,369.88 and 8,938.50 is: 13,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,581.54 : 38,369.88 = 8,938.50 : x
  2. Step 2: Convert to fraction form
    25,581.54/38,369.88 = 8,938.50/x
  3. Step 3: Cross multiply
    25,581.54x = 38,369.88 × 8,938.50
  4. Step 4: Simplify right side
    25,581.54x = 342,969,172.38
  5. Step 5: Solve for x
    x = 342,969,172.38/25,581.54
  6. Step 6: Final answer
    x = 13,406.90

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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.