Home / 42,694.20-63,955.56-21,282.34

Finding the Fourth Proportional to 42,694.20, 63,955.56 and 21,282.34

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Solution

The fourth proportional to 42,694.20, 63,955.56 and 21,282.34 is: 31,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,694.20 : 63,955.56 = 21,282.34 : x
  2. Step 2: Convert to fraction form
    42,694.20/63,955.56 = 21,282.34/x
  3. Step 3: Cross multiply
    42,694.20x = 63,955.56 × 21,282.34
  4. Step 4: Simplify right side
    42,694.20x = 1,361,123,972.81
  5. Step 5: Solve for x
    x = 1,361,123,972.81/42,694.20
  6. Step 6: Final answer
    x = 31,880.77

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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.