Home / 17,491.20-24,138.50-9,938.81

Finding the Fourth Proportional to 17,491.20, 24,138.50 and 9,938.81

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Solution

The fourth proportional to 17,491.20, 24,138.50 and 9,938.81 is: 13,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,491.20 : 24,138.50 = 9,938.81 : x
  2. Step 2: Convert to fraction form
    17,491.20/24,138.50 = 9,938.81/x
  3. Step 3: Cross multiply
    17,491.20x = 24,138.50 × 9,938.81
  4. Step 4: Simplify right side
    17,491.20x = 239,907,794.80
  5. Step 5: Solve for x
    x = 239,907,794.80/17,491.20
  6. Step 6: Final answer
    x = 13,715.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.