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Finding the Fourth Proportional to 28,037.27, 42,056 and 8,316

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Solution

The fourth proportional to 28,037.27, 42,056 and 8,316 is: 12,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.27 : 42,056 = 8,316 : x
  2. Step 2: Convert to fraction form
    28,037.27/42,056 = 8,316/x
  3. Step 3: Cross multiply
    28,037.27x = 42,056 × 8,316
  4. Step 4: Simplify right side
    28,037.27x = 349,737,696
  5. Step 5: Solve for x
    x = 349,737,696/28,037.27
  6. Step 6: Final answer
    x = 12,474.03

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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.