Home / 28,395.52-42,613.05-11,755.64

Finding the Fourth Proportional to 28,395.52, 42,613.05 and 11,755.64

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Solution

The fourth proportional to 28,395.52, 42,613.05 and 11,755.64 is: 17,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,395.52 : 42,613.05 = 11,755.64 : x
  2. Step 2: Convert to fraction form
    28,395.52/42,613.05 = 11,755.64/x
  3. Step 3: Cross multiply
    28,395.52x = 42,613.05 × 11,755.64
  4. Step 4: Simplify right side
    28,395.52x = 500,943,675.10
  5. Step 5: Solve for x
    x = 500,943,675.10/28,395.52
  6. Step 6: Final answer
    x = 17,641.64

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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.