Home / 20,292.42-28,006.19-11,341.79

Finding the Fourth Proportional to 20,292.42, 28,006.19 and 11,341.79

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Solution

The fourth proportional to 20,292.42, 28,006.19 and 11,341.79 is: 15,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.42 : 28,006.19 = 11,341.79 : x
  2. Step 2: Convert to fraction form
    20,292.42/28,006.19 = 11,341.79/x
  3. Step 3: Cross multiply
    20,292.42x = 28,006.19 × 11,341.79
  4. Step 4: Simplify right side
    20,292.42x = 317,640,128.94
  5. Step 5: Solve for x
    x = 317,640,128.94/20,292.42
  6. Step 6: Final answer
    x = 15,653.14

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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.