Home / 20,697.58-28,562.70-11,266.12

Finding the Fourth Proportional to 20,697.58, 28,562.70 and 11,266.12

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Solution

The fourth proportional to 20,697.58, 28,562.70 and 11,266.12 is: 15,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.58 : 28,562.70 = 11,266.12 : x
  2. Step 2: Convert to fraction form
    20,697.58/28,562.70 = 11,266.12/x
  3. Step 3: Cross multiply
    20,697.58x = 28,562.70 × 11,266.12
  4. Step 4: Simplify right side
    20,697.58x = 321,790,805.72
  5. Step 5: Solve for x
    x = 321,790,805.72/20,697.58
  6. Step 6: Final answer
    x = 15,547.27

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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.