Home / 30,974.30-42,744.59-16,827.16

Finding the Fourth Proportional to 30,974.30, 42,744.59 and 16,827.16

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Solution

The fourth proportional to 30,974.30, 42,744.59 and 16,827.16 is: 23,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.30 : 42,744.59 = 16,827.16 : x
  2. Step 2: Convert to fraction form
    30,974.30/42,744.59 = 16,827.16/x
  3. Step 3: Cross multiply
    30,974.30x = 42,744.59 × 16,827.16
  4. Step 4: Simplify right side
    30,974.30x = 719,270,055.06
  5. Step 5: Solve for x
    x = 719,270,055.06/30,974.30
  6. Step 6: Final answer
    x = 23,221.51

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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.