Home / 20,282.06-27,996.95-15,260.88

Finding the Fourth Proportional to 20,282.06, 27,996.95 and 15,260.88

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Solution

The fourth proportional to 20,282.06, 27,996.95 and 15,260.88 is: 21,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.06 : 27,996.95 = 15,260.88 : x
  2. Step 2: Convert to fraction form
    20,282.06/27,996.95 = 15,260.88/x
  3. Step 3: Cross multiply
    20,282.06x = 27,996.95 × 15,260.88
  4. Step 4: Simplify right side
    20,282.06x = 427,258,018.01
  5. Step 5: Solve for x
    x = 427,258,018.01/20,282.06
  6. Step 6: Final answer
    x = 21,065.81

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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.