Home / 21,076.41-31,614.62-11,711.95

Finding the Fourth Proportional to 21,076.41, 31,614.62 and 11,711.95

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Solution

The fourth proportional to 21,076.41, 31,614.62 and 11,711.95 is: 17,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.41 : 31,614.62 = 11,711.95 : x
  2. Step 2: Convert to fraction form
    21,076.41/31,614.62 = 11,711.95/x
  3. Step 3: Cross multiply
    21,076.41x = 31,614.62 × 11,711.95
  4. Step 4: Simplify right side
    21,076.41x = 370,268,848.71
  5. Step 5: Solve for x
    x = 370,268,848.71/21,076.41
  6. Step 6: Final answer
    x = 17,567.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.