Home / 22,185.75-30,616.34-15,124.53

Finding the Fourth Proportional to 22,185.75, 30,616.34 and 15,124.53

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Solution

The fourth proportional to 22,185.75, 30,616.34 and 15,124.53 is: 20,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.75 : 30,616.34 = 15,124.53 : x
  2. Step 2: Convert to fraction form
    22,185.75/30,616.34 = 15,124.53/x
  3. Step 3: Cross multiply
    22,185.75x = 30,616.34 × 15,124.53
  4. Step 4: Simplify right side
    22,185.75x = 463,057,677.20
  5. Step 5: Solve for x
    x = 463,057,677.20/22,185.75
  6. Step 6: Final answer
    x = 20,871.85

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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.