Home / 22,037.55-30,388.28-15,662.45

Finding the Fourth Proportional to 22,037.55, 30,388.28 and 15,662.45

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Solution

The fourth proportional to 22,037.55, 30,388.28 and 15,662.45 is: 21,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,037.55 : 30,388.28 = 15,662.45 : x
  2. Step 2: Convert to fraction form
    22,037.55/30,388.28 = 15,662.45/x
  3. Step 3: Cross multiply
    22,037.55x = 30,388.28 × 15,662.45
  4. Step 4: Simplify right side
    22,037.55x = 475,954,685.83
  5. Step 5: Solve for x
    x = 475,954,685.83/22,037.55
  6. Step 6: Final answer
    x = 21,597.44

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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.