Home / 19,705.48-29,557.39-9,171.88

Finding the Fourth Proportional to 19,705.48, 29,557.39 and 9,171.88

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Solution

The fourth proportional to 19,705.48, 29,557.39 and 9,171.88 is: 13,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.48 : 29,557.39 = 9,171.88 : x
  2. Step 2: Convert to fraction form
    19,705.48/29,557.39 = 9,171.88/x
  3. Step 3: Cross multiply
    19,705.48x = 29,557.39 × 9,171.88
  4. Step 4: Simplify right side
    19,705.48x = 271,096,686.41
  5. Step 5: Solve for x
    x = 271,096,686.41/19,705.48
  6. Step 6: Final answer
    x = 13,757.43

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1.5x scale

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.