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Finding the Fourth Proportional to 25,143.80, 37,715.69 and 6,423.87

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Solution

The fourth proportional to 25,143.80, 37,715.69 and 6,423.87 is: 9,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.80 : 37,715.69 = 6,423.87 : x
  2. Step 2: Convert to fraction form
    25,143.80/37,715.69 = 6,423.87/x
  3. Step 3: Cross multiply
    25,143.80x = 37,715.69 × 6,423.87
  4. Step 4: Simplify right side
    25,143.80x = 242,280,689.52
  5. Step 5: Solve for x
    x = 242,280,689.52/25,143.80
  6. Step 6: Final answer
    x = 9,635.80

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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.