Home / 47,688.62-71,532.94-12,631.02

Finding the Fourth Proportional to 47,688.62, 71,532.94 and 12,631.02

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Solution

The fourth proportional to 47,688.62, 71,532.94 and 12,631.02 is: 18,946.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,688.62 : 71,532.94 = 12,631.02 : x
  2. Step 2: Convert to fraction form
    47,688.62/71,532.94 = 12,631.02/x
  3. Step 3: Cross multiply
    47,688.62x = 71,532.94 × 12,631.02
  4. Step 4: Simplify right side
    47,688.62x = 903,533,995.80
  5. Step 5: Solve for x
    x = 903,533,995.80/47,688.62
  6. Step 6: Final answer
    x = 18,946.53

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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.