Home / 20,028.06-27,637.86-10,953.15

Finding the Fourth Proportional to 20,028.06, 27,637.86 and 10,953.15

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Solution

The fourth proportional to 20,028.06, 27,637.86 and 10,953.15 is: 15,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.06 : 27,637.86 = 10,953.15 : x
  2. Step 2: Convert to fraction form
    20,028.06/27,637.86 = 10,953.15/x
  3. Step 3: Cross multiply
    20,028.06x = 27,637.86 × 10,953.15
  4. Step 4: Simplify right side
    20,028.06x = 302,721,626.26
  5. Step 5: Solve for x
    x = 302,721,626.26/20,028.06
  6. Step 6: Final answer
    x = 15,114.88

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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.