Home / 19,787.88-29,681.76-4,997.94

Finding the Fourth Proportional to 19,787.88, 29,681.76 and 4,997.94

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Solution

The fourth proportional to 19,787.88, 29,681.76 and 4,997.94 is: 7,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.88 : 29,681.76 = 4,997.94 : x
  2. Step 2: Convert to fraction form
    19,787.88/29,681.76 = 4,997.94/x
  3. Step 3: Cross multiply
    19,787.88x = 29,681.76 × 4,997.94
  4. Step 4: Simplify right side
    19,787.88x = 148,347,655.57
  5. Step 5: Solve for x
    x = 148,347,655.57/19,787.88
  6. Step 6: Final answer
    x = 7,496.89

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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.