Home / 34,276.72-51,356.40-18,705.28

Finding the Fourth Proportional to 34,276.72, 51,356.40 and 18,705.28

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Solution

The fourth proportional to 34,276.72, 51,356.40 and 18,705.28 is: 28,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,276.72 : 51,356.40 = 18,705.28 : x
  2. Step 2: Convert to fraction form
    34,276.72/51,356.40 = 18,705.28/x
  3. Step 3: Cross multiply
    34,276.72x = 51,356.40 × 18,705.28
  4. Step 4: Simplify right side
    34,276.72x = 960,635,841.79
  5. Step 5: Solve for x
    x = 960,635,841.79/34,276.72
  6. Step 6: Final answer
    x = 28,025.90

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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.