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Finding the Fourth Proportional to 18,885.41, 28,332.23 and 6,235.72

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Solution

The fourth proportional to 18,885.41, 28,332.23 and 6,235.72 is: 9,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.41 : 28,332.23 = 6,235.72 : x
  2. Step 2: Convert to fraction form
    18,885.41/28,332.23 = 6,235.72/x
  3. Step 3: Cross multiply
    18,885.41x = 28,332.23 × 6,235.72
  4. Step 4: Simplify right side
    18,885.41x = 176,671,751.25
  5. Step 5: Solve for x
    x = 176,671,751.25/18,885.41
  6. Step 6: Final answer
    x = 9,354.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.