Home / 20,171.81-27,837.78-11,097.56

Finding the Fourth Proportional to 20,171.81, 27,837.78 and 11,097.56

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Solution

The fourth proportional to 20,171.81, 27,837.78 and 11,097.56 is: 15,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.81 : 27,837.78 = 11,097.56 : x
  2. Step 2: Convert to fraction form
    20,171.81/27,837.78 = 11,097.56/x
  3. Step 3: Cross multiply
    20,171.81x = 27,837.78 × 11,097.56
  4. Step 4: Simplify right side
    20,171.81x = 308,931,503.41
  5. Step 5: Solve for x
    x = 308,931,503.41/20,171.81
  6. Step 6: Final answer
    x = 15,315.01

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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.