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Finding the Fourth Proportional to 19,712, 29,567.88 and 5,672.36

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Solution

The fourth proportional to 19,712, 29,567.88 and 5,672.36 is: 8,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,712 : 29,567.88 = 5,672.36 : x
  2. Step 2: Convert to fraction form
    19,712/29,567.88 = 5,672.36/x
  3. Step 3: Cross multiply
    19,712x = 29,567.88 × 5,672.36
  4. Step 4: Simplify right side
    19,712x = 167,719,659.80
  5. Step 5: Solve for x
    x = 167,719,659.80/19,712
  6. Step 6: Final answer
    x = 8,508.51

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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.