Home / 27,724.46-38,259.82-15,787.81

Finding the Fourth Proportional to 27,724.46, 38,259.82 and 15,787.81

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Solution

The fourth proportional to 27,724.46, 38,259.82 and 15,787.81 is: 21,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.46 : 38,259.82 = 15,787.81 : x
  2. Step 2: Convert to fraction form
    27,724.46/38,259.82 = 15,787.81/x
  3. Step 3: Cross multiply
    27,724.46x = 38,259.82 × 15,787.81
  4. Step 4: Simplify right side
    27,724.46x = 604,038,791.95
  5. Step 5: Solve for x
    x = 604,038,791.95/27,724.46
  6. Step 6: Final answer
    x = 21,787.21

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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.