Home / 20,250.90-27,959.25-12,707.58

Finding the Fourth Proportional to 20,250.90, 27,959.25 and 12,707.58

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Solution

The fourth proportional to 20,250.90, 27,959.25 and 12,707.58 is: 17,544.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.90 : 27,959.25 = 12,707.58 : x
  2. Step 2: Convert to fraction form
    20,250.90/27,959.25 = 12,707.58/x
  3. Step 3: Cross multiply
    20,250.90x = 27,959.25 × 12,707.58
  4. Step 4: Simplify right side
    20,250.90x = 355,294,406.12
  5. Step 5: Solve for x
    x = 355,294,406.12/20,250.90
  6. Step 6: Final answer
    x = 17,544.62

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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.