Home / 19,429.28-29,145.84-5,580.32

Finding the Fourth Proportional to 19,429.28, 29,145.84 and 5,580.32

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Solution

The fourth proportional to 19,429.28, 29,145.84 and 5,580.32 is: 8,371.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.28 : 29,145.84 = 5,580.32 : x
  2. Step 2: Convert to fraction form
    19,429.28/29,145.84 = 5,580.32/x
  3. Step 3: Cross multiply
    19,429.28x = 29,145.84 × 5,580.32
  4. Step 4: Simplify right side
    19,429.28x = 162,643,113.87
  5. Step 5: Solve for x
    x = 162,643,113.87/19,429.28
  6. Step 6: Final answer
    x = 8,371.03

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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.