Home / 20,899.34-28,841.01-11,468.06

Finding the Fourth Proportional to 20,899.34, 28,841.01 and 11,468.06

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Solution

The fourth proportional to 20,899.34, 28,841.01 and 11,468.06 is: 15,825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.34 : 28,841.01 = 11,468.06 : x
  2. Step 2: Convert to fraction form
    20,899.34/28,841.01 = 11,468.06/x
  3. Step 3: Cross multiply
    20,899.34x = 28,841.01 × 11,468.06
  4. Step 4: Simplify right side
    20,899.34x = 330,750,433.14
  5. Step 5: Solve for x
    x = 330,750,433.14/20,899.34
  6. Step 6: Final answer
    x = 15,825.88

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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.