Home / 19,972.94-29,912.72-15,784.84

Finding the Fourth Proportional to 19,972.94, 29,912.72 and 15,784.84

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Solution

The fourth proportional to 19,972.94, 29,912.72 and 15,784.84 is: 23,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.94 : 29,912.72 = 15,784.84 : x
  2. Step 2: Convert to fraction form
    19,972.94/29,912.72 = 15,784.84/x
  3. Step 3: Cross multiply
    19,972.94x = 29,912.72 × 15,784.84
  4. Step 4: Simplify right side
    19,972.94x = 472,167,349.60
  5. Step 5: Solve for x
    x = 472,167,349.60/19,972.94
  6. Step 6: Final answer
    x = 23,640.35

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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.