Home / 20,700.01-28,566.53-11,269.09

Finding the Fourth Proportional to 20,700.01, 28,566.53 and 11,269.09

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Solution

The fourth proportional to 20,700.01, 28,566.53 and 11,269.09 is: 15,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.01 : 28,566.53 = 11,269.09 : x
  2. Step 2: Convert to fraction form
    20,700.01/28,566.53 = 11,269.09/x
  3. Step 3: Cross multiply
    20,700.01x = 28,566.53 × 11,269.09
  4. Step 4: Simplify right side
    20,700.01x = 321,918,797.56
  5. Step 5: Solve for x
    x = 321,918,797.56/20,700.01
  6. Step 6: Final answer
    x = 15,551.63

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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.