Home / 28,468.48-42,718.14-11,839.96

Finding the Fourth Proportional to 28,468.48, 42,718.14 and 11,839.96

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Solution

The fourth proportional to 28,468.48, 42,718.14 and 11,839.96 is: 17,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.48 : 42,718.14 = 11,839.96 : x
  2. Step 2: Convert to fraction form
    28,468.48/42,718.14 = 11,839.96/x
  3. Step 3: Cross multiply
    28,468.48x = 42,718.14 × 11,839.96
  4. Step 4: Simplify right side
    28,468.48x = 505,781,068.87
  5. Step 5: Solve for x
    x = 505,781,068.87/28,468.48
  6. Step 6: Final answer
    x = 17,766.35

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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.