Home / 42,153.22-63,169.68-28,900

Finding the Fourth Proportional to 42,153.22, 63,169.68 and 28,900

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Solution

The fourth proportional to 42,153.22, 63,169.68 and 28,900 is: 43,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153.22 : 63,169.68 = 28,900 : x
  2. Step 2: Convert to fraction form
    42,153.22/63,169.68 = 28,900/x
  3. Step 3: Cross multiply
    42,153.22x = 63,169.68 × 28,900
  4. Step 4: Simplify right side
    42,153.22x = 1,825,603,752
  5. Step 5: Solve for x
    x = 1,825,603,752/42,153.22
  6. Step 6: Final answer
    x = 43,308.76

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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.