Home / 20,241.90-27,946.82-12,698.57

Finding the Fourth Proportional to 20,241.90, 27,946.82 and 12,698.57

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Solution

The fourth proportional to 20,241.90, 27,946.82 and 12,698.57 is: 17,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.90 : 27,946.82 = 12,698.57 : x
  2. Step 2: Convert to fraction form
    20,241.90/27,946.82 = 12,698.57/x
  3. Step 3: Cross multiply
    20,241.90x = 27,946.82 × 12,698.57
  4. Step 4: Simplify right side
    20,241.90x = 354,884,751.66
  5. Step 5: Solve for x
    x = 354,884,751.66/20,241.90
  6. Step 6: Final answer
    x = 17,532.19

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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.