Home / 20,528.88-28,329.84-11,097.45

Finding the Fourth Proportional to 20,528.88, 28,329.84 and 11,097.45

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Solution

The fourth proportional to 20,528.88, 28,329.84 and 11,097.45 is: 15,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.88 : 28,329.84 = 11,097.45 : x
  2. Step 2: Convert to fraction form
    20,528.88/28,329.84 = 11,097.45/x
  3. Step 3: Cross multiply
    20,528.88x = 28,329.84 × 11,097.45
  4. Step 4: Simplify right side
    20,528.88x = 314,388,982.91
  5. Step 5: Solve for x
    x = 314,388,982.91/20,528.88
  6. Step 6: Final answer
    x = 15,314.47

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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.