Home / 21,766.80-30,055.08-16,723.04

Finding the Fourth Proportional to 21,766.80, 30,055.08 and 16,723.04

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Solution

The fourth proportional to 21,766.80, 30,055.08 and 16,723.04 is: 23,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.80 : 30,055.08 = 16,723.04 : x
  2. Step 2: Convert to fraction form
    21,766.80/30,055.08 = 16,723.04/x
  3. Step 3: Cross multiply
    21,766.80x = 30,055.08 × 16,723.04
  4. Step 4: Simplify right side
    21,766.80x = 502,612,305.04
  5. Step 5: Solve for x
    x = 502,612,305.04/21,766.80
  6. Step 6: Final answer
    x = 23,090.78

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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.