Home / 30,863.92-42,592.16-16,716.76

Finding the Fourth Proportional to 30,863.92, 42,592.16 and 16,716.76

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Solution

The fourth proportional to 30,863.92, 42,592.16 and 16,716.76 is: 23,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,863.92 : 42,592.16 = 16,716.76 : x
  2. Step 2: Convert to fraction form
    30,863.92/42,592.16 = 16,716.76/x
  3. Step 3: Cross multiply
    30,863.92x = 42,592.16 × 16,716.76
  4. Step 4: Simplify right side
    30,863.92x = 712,002,916.60
  5. Step 5: Solve for x
    x = 712,002,916.60/30,863.92
  6. Step 6: Final answer
    x = 23,069.10

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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.