Home / 32,970.78-49,456.05-18,171.90

Finding the Fourth Proportional to 32,970.78, 49,456.05 and 18,171.90

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Solution

The fourth proportional to 32,970.78, 49,456.05 and 18,171.90 is: 27,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,970.78 : 49,456.05 = 18,171.90 : x
  2. Step 2: Convert to fraction form
    32,970.78/49,456.05 = 18,171.90/x
  3. Step 3: Cross multiply
    32,970.78x = 49,456.05 × 18,171.90
  4. Step 4: Simplify right side
    32,970.78x = 898,710,395.00
  5. Step 5: Solve for x
    x = 898,710,395.00/32,970.78
  6. Step 6: Final answer
    x = 27,257.78

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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.