Home / 19,428.44-29,138.30-7,582.52

Finding the Fourth Proportional to 19,428.44, 29,138.30 and 7,582.52

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Solution

The fourth proportional to 19,428.44, 29,138.30 and 7,582.52 is: 11,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.44 : 29,138.30 = 7,582.52 : x
  2. Step 2: Convert to fraction form
    19,428.44/29,138.30 = 7,582.52/x
  3. Step 3: Cross multiply
    19,428.44x = 29,138.30 × 7,582.52
  4. Step 4: Simplify right side
    19,428.44x = 220,941,805.88
  5. Step 5: Solve for x
    x = 220,941,805.88/19,428.44
  6. Step 6: Final answer
    x = 11,372.08

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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.