Home / 19,823.68-27,356.52-11,440

Finding the Fourth Proportional to 19,823.68, 27,356.52 and 11,440

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Solution

The fourth proportional to 19,823.68, 27,356.52 and 11,440 is: 15,787.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.68 : 27,356.52 = 11,440 : x
  2. Step 2: Convert to fraction form
    19,823.68/27,356.52 = 11,440/x
  3. Step 3: Cross multiply
    19,823.68x = 27,356.52 × 11,440
  4. Step 4: Simplify right side
    19,823.68x = 312,958,588.80
  5. Step 5: Solve for x
    x = 312,958,588.80/19,823.68
  6. Step 6: Final answer
    x = 15,787.11

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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.