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Finding the Fourth Proportional to 19,230.42, 28,835.63 and 8,695.41

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Solution

The fourth proportional to 19,230.42, 28,835.63 and 8,695.41 is: 13,038.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.42 : 28,835.63 = 8,695.41 : x
  2. Step 2: Convert to fraction form
    19,230.42/28,835.63 = 8,695.41/x
  3. Step 3: Cross multiply
    19,230.42x = 28,835.63 × 8,695.41
  4. Step 4: Simplify right side
    19,230.42x = 250,737,625.46
  5. Step 5: Solve for x
    x = 250,737,625.46/19,230.42
  6. Step 6: Final answer
    x = 13,038.59

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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.