Home / 20,028.48-27,637.56-12,475.68

Finding the Fourth Proportional to 20,028.48, 27,637.56 and 12,475.68

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Solution

The fourth proportional to 20,028.48, 27,637.56 and 12,475.68 is: 17,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.48 : 27,637.56 = 12,475.68 : x
  2. Step 2: Convert to fraction form
    20,028.48/27,637.56 = 12,475.68/x
  3. Step 3: Cross multiply
    20,028.48x = 27,637.56 × 12,475.68
  4. Step 4: Simplify right side
    20,028.48x = 344,797,354.54
  5. Step 5: Solve for x
    x = 344,797,354.54/20,028.48
  6. Step 6: Final answer
    x = 17,215.35

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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.