Home / 20,482.26-28,269.57-11,985.30

Finding the Fourth Proportional to 20,482.26, 28,269.57 and 11,985.30

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Solution

The fourth proportional to 20,482.26, 28,269.57 and 11,985.30 is: 16,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.26 : 28,269.57 = 11,985.30 : x
  2. Step 2: Convert to fraction form
    20,482.26/28,269.57 = 11,985.30/x
  3. Step 3: Cross multiply
    20,482.26x = 28,269.57 × 11,985.30
  4. Step 4: Simplify right side
    20,482.26x = 338,819,277.32
  5. Step 5: Solve for x
    x = 338,819,277.32/20,482.26
  6. Step 6: Final answer
    x = 16,542.08

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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.