Home / 20,946.97-28,906.94-11,386.93

Finding the Fourth Proportional to 20,946.97, 28,906.94 and 11,386.93

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Solution

The fourth proportional to 20,946.97, 28,906.94 and 11,386.93 is: 15,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.97 : 28,906.94 = 11,386.93 : x
  2. Step 2: Convert to fraction form
    20,946.97/28,906.94 = 11,386.93/x
  3. Step 3: Cross multiply
    20,946.97x = 28,906.94 × 11,386.93
  4. Step 4: Simplify right side
    20,946.97x = 329,161,264.66
  5. Step 5: Solve for x
    x = 329,161,264.66/20,946.97
  6. Step 6: Final answer
    x = 15,714.03

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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.