Home / 30,974.49-42,744.96-16,827.36

Finding the Fourth Proportional to 30,974.49, 42,744.96 and 16,827.36

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Solution

The fourth proportional to 30,974.49, 42,744.96 and 16,827.36 is: 23,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.49 : 42,744.96 = 16,827.36 : x
  2. Step 2: Convert to fraction form
    30,974.49/42,744.96 = 16,827.36/x
  3. Step 3: Cross multiply
    30,974.49x = 42,744.96 × 16,827.36
  4. Step 4: Simplify right side
    30,974.49x = 719,284,830.11
  5. Step 5: Solve for x
    x = 719,284,830.11/30,974.49
  6. Step 6: Final answer
    x = 23,221.85

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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.