Home / 19,830.48-29,741.10-5,787.56

Finding the Fourth Proportional to 19,830.48, 29,741.10 and 5,787.56

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Solution

The fourth proportional to 19,830.48, 29,741.10 and 5,787.56 is: 8,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.48 : 29,741.10 = 5,787.56 : x
  2. Step 2: Convert to fraction form
    19,830.48/29,741.10 = 5,787.56/x
  3. Step 3: Cross multiply
    19,830.48x = 29,741.10 × 5,787.56
  4. Step 4: Simplify right side
    19,830.48x = 172,128,252.01
  5. Step 5: Solve for x
    x = 172,128,252.01/19,830.48
  6. Step 6: Final answer
    x = 8,679.98

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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.