Home / 22,787.75-31,448.31-13,359.35

Finding the Fourth Proportional to 22,787.75, 31,448.31 and 13,359.35

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Solution

The fourth proportional to 22,787.75, 31,448.31 and 13,359.35 is: 18,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,787.75 : 31,448.31 = 13,359.35 : x
  2. Step 2: Convert to fraction form
    22,787.75/31,448.31 = 13,359.35/x
  3. Step 3: Cross multiply
    22,787.75x = 31,448.31 × 13,359.35
  4. Step 4: Simplify right side
    22,787.75x = 420,128,980.20
  5. Step 5: Solve for x
    x = 420,128,980.20/22,787.75
  6. Step 6: Final answer
    x = 18,436.62

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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.