Home / 22,209.15-30,647.28-13,256.58

Finding the Fourth Proportional to 22,209.15, 30,647.28 and 13,256.58

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Solution

The fourth proportional to 22,209.15, 30,647.28 and 13,256.58 is: 18,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,209.15 : 30,647.28 = 13,256.58 : x
  2. Step 2: Convert to fraction form
    22,209.15/30,647.28 = 13,256.58/x
  3. Step 3: Cross multiply
    22,209.15x = 30,647.28 × 13,256.58
  4. Step 4: Simplify right side
    22,209.15x = 406,278,119.10
  5. Step 5: Solve for x
    x = 406,278,119.10/22,209.15
  6. Step 6: Final answer
    x = 18,293.28

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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.