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Finding the Fourth Proportional to 19,221, 28,834.98 and 8,695.98

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Solution

The fourth proportional to 19,221, 28,834.98 and 8,695.98 is: 13,045.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221 : 28,834.98 = 8,695.98 : x
  2. Step 2: Convert to fraction form
    19,221/28,834.98 = 8,695.98/x
  3. Step 3: Cross multiply
    19,221x = 28,834.98 × 8,695.98
  4. Step 4: Simplify right side
    19,221x = 250,748,409.38
  5. Step 5: Solve for x
    x = 250,748,409.38/19,221
  6. Step 6: Final answer
    x = 13,045.54

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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.