Home / 28,514.14-42,741.14-11,857.40

Finding the Fourth Proportional to 28,514.14, 42,741.14 and 11,857.40

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Solution

The fourth proportional to 28,514.14, 42,741.14 and 11,857.40 is: 17,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.14 : 42,741.14 = 11,857.40 : x
  2. Step 2: Convert to fraction form
    28,514.14/42,741.14 = 11,857.40/x
  3. Step 3: Cross multiply
    28,514.14x = 42,741.14 × 11,857.40
  4. Step 4: Simplify right side
    28,514.14x = 506,798,680.72
  5. Step 5: Solve for x
    x = 506,798,680.72/28,514.14
  6. Step 6: Final answer
    x = 17,773.59

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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.