Home / 17,424.59-23,991.30-15,378.39

Finding the Fourth Proportional to 17,424.59, 23,991.30 and 15,378.39

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Solution

The fourth proportional to 17,424.59, 23,991.30 and 15,378.39 is: 21,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,424.59 : 23,991.30 = 15,378.39 : x
  2. Step 2: Convert to fraction form
    17,424.59/23,991.30 = 15,378.39/x
  3. Step 3: Cross multiply
    17,424.59x = 23,991.30 × 15,378.39
  4. Step 4: Simplify right side
    17,424.59x = 368,947,568.01
  5. Step 5: Solve for x
    x = 368,947,568.01/17,424.59
  6. Step 6: Final answer
    x = 21,173.97

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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.