Home / 20,767.48-28,659.08-11,336.04

Finding the Fourth Proportional to 20,767.48, 28,659.08 and 11,336.04

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Solution

The fourth proportional to 20,767.48, 28,659.08 and 11,336.04 is: 15,643.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.48 : 28,659.08 = 11,336.04 : x
  2. Step 2: Convert to fraction form
    20,767.48/28,659.08 = 11,336.04/x
  3. Step 3: Cross multiply
    20,767.48x = 28,659.08 × 11,336.04
  4. Step 4: Simplify right side
    20,767.48x = 324,880,505.58
  5. Step 5: Solve for x
    x = 324,880,505.58/20,767.48
  6. Step 6: Final answer
    x = 15,643.72

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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.