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Finding the Fourth Proportional to 18,301.86, 25,237.71 and 15,658.02

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Solution

The fourth proportional to 18,301.86, 25,237.71 and 15,658.02 is: 21,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.86 : 25,237.71 = 15,658.02 : x
  2. Step 2: Convert to fraction form
    18,301.86/25,237.71 = 15,658.02/x
  3. Step 3: Cross multiply
    18,301.86x = 25,237.71 × 15,658.02
  4. Step 4: Simplify right side
    18,301.86x = 395,172,567.93
  5. Step 5: Solve for x
    x = 395,172,567.93/18,301.86
  6. Step 6: Final answer
    x = 21,591.93

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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.