Home / 31,683.30-43,719.98-18,933.95

Finding the Fourth Proportional to 31,683.30, 43,719.98 and 18,933.95

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Solution

The fourth proportional to 31,683.30, 43,719.98 and 18,933.95 is: 26,127.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,683.30 : 43,719.98 = 18,933.95 : x
  2. Step 2: Convert to fraction form
    31,683.30/43,719.98 = 18,933.95/x
  3. Step 3: Cross multiply
    31,683.30x = 43,719.98 × 18,933.95
  4. Step 4: Simplify right side
    31,683.30x = 827,791,915.32
  5. Step 5: Solve for x
    x = 827,791,915.32/31,683.30
  6. Step 6: Final answer
    x = 26,127.07

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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.