Home / 20,735.12-28,614.32-11,304.08

Finding the Fourth Proportional to 20,735.12, 28,614.32 and 11,304.08

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Solution

The fourth proportional to 20,735.12, 28,614.32 and 11,304.08 is: 15,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.12 : 28,614.32 = 11,304.08 : x
  2. Step 2: Convert to fraction form
    20,735.12/28,614.32 = 11,304.08/x
  3. Step 3: Cross multiply
    20,735.12x = 28,614.32 × 11,304.08
  4. Step 4: Simplify right side
    20,735.12x = 323,458,562.43
  5. Step 5: Solve for x
    x = 323,458,562.43/20,735.12
  6. Step 6: Final answer
    x = 15,599.55

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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.