Home / 27,787.32-41,685.31-9,315

Finding the Fourth Proportional to 27,787.32, 41,685.31 and 9,315

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Solution

The fourth proportional to 27,787.32, 41,685.31 and 9,315 is: 13,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.32 : 41,685.31 = 9,315 : x
  2. Step 2: Convert to fraction form
    27,787.32/41,685.31 = 9,315/x
  3. Step 3: Cross multiply
    27,787.32x = 41,685.31 × 9,315
  4. Step 4: Simplify right side
    27,787.32x = 388,298,662.65
  5. Step 5: Solve for x
    x = 388,298,662.65/27,787.32
  6. Step 6: Final answer
    x = 13,973.95

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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.