Home / 20,698.33-28,562.86-11,266.90

Finding the Fourth Proportional to 20,698.33, 28,562.86 and 11,266.90

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Solution

The fourth proportional to 20,698.33, 28,562.86 and 11,266.90 is: 15,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.33 : 28,562.86 = 11,266.90 : x
  2. Step 2: Convert to fraction form
    20,698.33/28,562.86 = 11,266.90/x
  3. Step 3: Cross multiply
    20,698.33x = 28,562.86 × 11,266.90
  4. Step 4: Simplify right side
    20,698.33x = 321,814,887.33
  5. Step 5: Solve for x
    x = 321,814,887.33/20,698.33
  6. Step 6: Final answer
    x = 15,547.87

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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.