Home / 28,486.55-42,733.31-11,857.86

Finding the Fourth Proportional to 28,486.55, 42,733.31 and 11,857.86

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Solution

The fourth proportional to 28,486.55, 42,733.31 and 11,857.86 is: 17,788.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.55 : 42,733.31 = 11,857.86 : x
  2. Step 2: Convert to fraction form
    28,486.55/42,733.31 = 11,857.86/x
  3. Step 3: Cross multiply
    28,486.55x = 42,733.31 × 11,857.86
  4. Step 4: Simplify right side
    28,486.55x = 506,725,548.03
  5. Step 5: Solve for x
    x = 506,725,548.03/28,486.55
  6. Step 6: Final answer
    x = 17,788.24

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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.