Home / 29,135.20-43,724.40-19,271.20

Finding the Fourth Proportional to 29,135.20, 43,724.40 and 19,271.20

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Solution

The fourth proportional to 29,135.20, 43,724.40 and 19,271.20 is: 28,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,135.20 : 43,724.40 = 19,271.20 : x
  2. Step 2: Convert to fraction form
    29,135.20/43,724.40 = 19,271.20/x
  3. Step 3: Cross multiply
    29,135.20x = 43,724.40 × 19,271.20
  4. Step 4: Simplify right side
    29,135.20x = 842,621,657.28
  5. Step 5: Solve for x
    x = 842,621,657.28/29,135.20
  6. Step 6: Final answer
    x = 28,921.09

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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.