Home / 17,685.36-24,409.52-11,220.80

Finding the Fourth Proportional to 17,685.36, 24,409.52 and 11,220.80

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Solution

The fourth proportional to 17,685.36, 24,409.52 and 11,220.80 is: 15,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,685.36 : 24,409.52 = 11,220.80 : x
  2. Step 2: Convert to fraction form
    17,685.36/24,409.52 = 11,220.80/x
  3. Step 3: Cross multiply
    17,685.36x = 24,409.52 × 11,220.80
  4. Step 4: Simplify right side
    17,685.36x = 273,894,342.02
  5. Step 5: Solve for x
    x = 273,894,342.02/17,685.36
  6. Step 6: Final answer
    x = 15,487.07

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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.