Home / 30,863.36-42,591.60-16,716.20

Finding the Fourth Proportional to 30,863.36, 42,591.60 and 16,716.20

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Solution

The fourth proportional to 30,863.36, 42,591.60 and 16,716.20 is: 23,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,863.36 : 42,591.60 = 16,716.20 : x
  2. Step 2: Convert to fraction form
    30,863.36/42,591.60 = 16,716.20/x
  3. Step 3: Cross multiply
    30,863.36x = 42,591.60 × 16,716.20
  4. Step 4: Simplify right side
    30,863.36x = 711,969,490.96
  5. Step 5: Solve for x
    x = 711,969,490.96/30,863.36
  6. Step 6: Final answer
    x = 23,068.44

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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.