Home / 15,911.70-23,867.55-14,380.80

Finding the Fourth Proportional to 15,911.70, 23,867.55 and 14,380.80

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Solution

The fourth proportional to 15,911.70, 23,867.55 and 14,380.80 is: 21,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.70 : 23,867.55 = 14,380.80 : x
  2. Step 2: Convert to fraction form
    15,911.70/23,867.55 = 14,380.80/x
  3. Step 3: Cross multiply
    15,911.70x = 23,867.55 × 14,380.80
  4. Step 4: Simplify right side
    15,911.70x = 343,234,463.04
  5. Step 5: Solve for x
    x = 343,234,463.04/15,911.70
  6. Step 6: Final answer
    x = 21,571.20

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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.