Home / 30,917.50-42,666.24-16,770.44

Finding the Fourth Proportional to 30,917.50, 42,666.24 and 16,770.44

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Solution

The fourth proportional to 30,917.50, 42,666.24 and 16,770.44 is: 23,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917.50 : 42,666.24 = 16,770.44 : x
  2. Step 2: Convert to fraction form
    30,917.50/42,666.24 = 16,770.44/x
  3. Step 3: Cross multiply
    30,917.50x = 42,666.24 × 16,770.44
  4. Step 4: Simplify right side
    30,917.50x = 715,531,787.50
  5. Step 5: Solve for x
    x = 715,531,787.50/30,917.50
  6. Step 6: Final answer
    x = 23,143.26

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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.