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Finding the Fourth Proportional to 28,237.42, 42,339.93 and 8,510.14

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Solution

The fourth proportional to 28,237.42, 42,339.93 and 8,510.14 is: 12,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.42 : 42,339.93 = 8,510.14 : x
  2. Step 2: Convert to fraction form
    28,237.42/42,339.93 = 8,510.14/x
  3. Step 3: Cross multiply
    28,237.42x = 42,339.93 × 8,510.14
  4. Step 4: Simplify right side
    28,237.42x = 360,318,731.89
  5. Step 5: Solve for x
    x = 360,318,731.89/28,237.42
  6. Step 6: Final answer
    x = 12,760.33

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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.