Home / 28,625.12-42,950.06-13,845.20

Finding the Fourth Proportional to 28,625.12, 42,950.06 and 13,845.20

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Solution

The fourth proportional to 28,625.12, 42,950.06 and 13,845.20 is: 20,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.12 : 42,950.06 = 13,845.20 : x
  2. Step 2: Convert to fraction form
    28,625.12/42,950.06 = 13,845.20/x
  3. Step 3: Cross multiply
    28,625.12x = 42,950.06 × 13,845.20
  4. Step 4: Simplify right side
    28,625.12x = 594,652,170.71
  5. Step 5: Solve for x
    x = 594,652,170.71/28,625.12
  6. Step 6: Final answer
    x = 20,773.79

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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.