Home / 20,292.18-28,001.07-11,792.70

Finding the Fourth Proportional to 20,292.18, 28,001.07 and 11,792.70

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Solution

The fourth proportional to 20,292.18, 28,001.07 and 11,792.70 is: 16,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.18 : 28,001.07 = 11,792.70 : x
  2. Step 2: Convert to fraction form
    20,292.18/28,001.07 = 11,792.70/x
  3. Step 3: Cross multiply
    20,292.18x = 28,001.07 × 11,792.70
  4. Step 4: Simplify right side
    20,292.18x = 330,208,218.19
  5. Step 5: Solve for x
    x = 330,208,218.19/20,292.18
  6. Step 6: Final answer
    x = 16,272.68

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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.