Home / 20,899.08-28,839.86-11,467.04

Finding the Fourth Proportional to 20,899.08, 28,839.86 and 11,467.04

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Solution

The fourth proportional to 20,899.08, 28,839.86 and 11,467.04 is: 15,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.08 : 28,839.86 = 11,467.04 : x
  2. Step 2: Convert to fraction form
    20,899.08/28,839.86 = 11,467.04/x
  3. Step 3: Cross multiply
    20,899.08x = 28,839.86 × 11,467.04
  4. Step 4: Simplify right side
    20,899.08x = 330,707,828.21
  5. Step 5: Solve for x
    x = 330,707,828.21/20,899.08
  6. Step 6: Final answer
    x = 15,824.04

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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.