Home / 29,678.40-40,949.28-19,621.44

Finding the Fourth Proportional to 29,678.40, 40,949.28 and 19,621.44

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Solution

The fourth proportional to 29,678.40, 40,949.28 and 19,621.44 is: 27,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,678.40 : 40,949.28 = 19,621.44 : x
  2. Step 2: Convert to fraction form
    29,678.40/40,949.28 = 19,621.44/x
  3. Step 3: Cross multiply
    29,678.40x = 40,949.28 × 19,621.44
  4. Step 4: Simplify right side
    29,678.40x = 803,483,840.56
  5. Step 5: Solve for x
    x = 803,483,840.56/29,678.40
  6. Step 6: Final answer
    x = 27,073.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.