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Finding the Fourth Proportional to 28,124.60, 42,203.10 and 10,596.20

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Solution

The fourth proportional to 28,124.60, 42,203.10 and 10,596.20 is: 15,900.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.60 : 42,203.10 = 10,596.20 : x
  2. Step 2: Convert to fraction form
    28,124.60/42,203.10 = 10,596.20/x
  3. Step 3: Cross multiply
    28,124.60x = 42,203.10 × 10,596.20
  4. Step 4: Simplify right side
    28,124.60x = 447,192,488.22
  5. Step 5: Solve for x
    x = 447,192,488.22/28,124.60
  6. Step 6: Final answer
    x = 15,900.40

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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.