Home / 30,772.28-42,465.78-16,625.14

Finding the Fourth Proportional to 30,772.28, 42,465.78 and 16,625.14

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Solution

The fourth proportional to 30,772.28, 42,465.78 and 16,625.14 is: 22,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,772.28 : 42,465.78 = 16,625.14 : x
  2. Step 2: Convert to fraction form
    30,772.28/42,465.78 = 16,625.14/x
  3. Step 3: Cross multiply
    30,772.28x = 42,465.78 × 16,625.14
  4. Step 4: Simplify right side
    30,772.28x = 705,999,431.54
  5. Step 5: Solve for x
    x = 705,999,431.54/30,772.28
  6. Step 6: Final answer
    x = 22,942.71

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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.