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Finding the Fourth Proportional to 27,807.28, 38,343.29 and 17,719.74

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Solution

The fourth proportional to 27,807.28, 38,343.29 and 17,719.74 is: 24,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.28 : 38,343.29 = 17,719.74 : x
  2. Step 2: Convert to fraction form
    27,807.28/38,343.29 = 17,719.74/x
  3. Step 3: Cross multiply
    27,807.28x = 38,343.29 × 17,719.74
  4. Step 4: Simplify right side
    27,807.28x = 679,433,033.69
  5. Step 5: Solve for x
    x = 679,433,033.69/27,807.28
  6. Step 6: Final answer
    x = 24,433.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.