Home / 22,173.75-30,599.78-15,112.51

Finding the Fourth Proportional to 22,173.75, 30,599.78 and 15,112.51

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Solution

The fourth proportional to 22,173.75, 30,599.78 and 15,112.51 is: 20,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,173.75 : 30,599.78 = 15,112.51 : x
  2. Step 2: Convert to fraction form
    22,173.75/30,599.78 = 15,112.51/x
  3. Step 3: Cross multiply
    22,173.75x = 30,599.78 × 15,112.51
  4. Step 4: Simplify right side
    22,173.75x = 462,439,329.19
  5. Step 5: Solve for x
    x = 462,439,329.19/22,173.75
  6. Step 6: Final answer
    x = 20,855.26

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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.