Home / 17,991.36-24,835.74-11,280.80

Finding the Fourth Proportional to 17,991.36, 24,835.74 and 11,280.80

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Solution

The fourth proportional to 17,991.36, 24,835.74 and 11,280.80 is: 15,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.36 : 24,835.74 = 11,280.80 : x
  2. Step 2: Convert to fraction form
    17,991.36/24,835.74 = 11,280.80/x
  3. Step 3: Cross multiply
    17,991.36x = 24,835.74 × 11,280.80
  4. Step 4: Simplify right side
    17,991.36x = 280,167,015.79
  5. Step 5: Solve for x
    x = 280,167,015.79/17,991.36
  6. Step 6: Final answer
    x = 15,572.31

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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.