Home / 20,254.12-30,382.26-19,146.04

Finding the Fourth Proportional to 20,254.12, 30,382.26 and 19,146.04

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Solution

The fourth proportional to 20,254.12, 30,382.26 and 19,146.04 is: 28,720.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.12 : 30,382.26 = 19,146.04 : x
  2. Step 2: Convert to fraction form
    20,254.12/30,382.26 = 19,146.04/x
  3. Step 3: Cross multiply
    20,254.12x = 30,382.26 × 19,146.04
  4. Step 4: Simplify right side
    20,254.12x = 581,699,965.25
  5. Step 5: Solve for x
    x = 581,699,965.25/20,254.12
  6. Step 6: Final answer
    x = 28,720.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.