Home / 20,248.31-27,941.31-12,694.34

Finding the Fourth Proportional to 20,248.31, 27,941.31 and 12,694.34

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Solution

The fourth proportional to 20,248.31, 27,941.31 and 12,694.34 is: 17,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.31 : 27,941.31 = 12,694.34 : x
  2. Step 2: Convert to fraction form
    20,248.31/27,941.31 = 12,694.34/x
  3. Step 3: Cross multiply
    20,248.31x = 27,941.31 × 12,694.34
  4. Step 4: Simplify right side
    20,248.31x = 354,696,349.48
  5. Step 5: Solve for x
    x = 354,696,349.48/20,248.31
  6. Step 6: Final answer
    x = 17,517.34

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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.