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Finding the Fourth Proportional to 28,177.39, 38,875.98 and 16,239.09

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Solution

The fourth proportional to 28,177.39, 38,875.98 and 16,239.09 is: 22,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,177.39 : 38,875.98 = 16,239.09 : x
  2. Step 2: Convert to fraction form
    28,177.39/38,875.98 = 16,239.09/x
  3. Step 3: Cross multiply
    28,177.39x = 38,875.98 × 16,239.09
  4. Step 4: Simplify right side
    28,177.39x = 631,310,538.06
  5. Step 5: Solve for x
    x = 631,310,538.06/28,177.39
  6. Step 6: Final answer
    x = 22,404.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.