Home / 29,120.64-43,690.18-10,400.28

Finding the Fourth Proportional to 29,120.64, 43,690.18 and 10,400.28

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Solution

The fourth proportional to 29,120.64, 43,690.18 and 10,400.28 is: 15,603.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,120.64 : 43,690.18 = 10,400.28 : x
  2. Step 2: Convert to fraction form
    29,120.64/43,690.18 = 10,400.28/x
  3. Step 3: Cross multiply
    29,120.64x = 43,690.18 × 10,400.28
  4. Step 4: Simplify right side
    29,120.64x = 454,390,105.25
  5. Step 5: Solve for x
    x = 454,390,105.25/29,120.64
  6. Step 6: Final answer
    x = 15,603.71

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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.