Home / 31,757.60-47,639.58-8,384.03

Finding the Fourth Proportional to 31,757.60, 47,639.58 and 8,384.03

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Solution

The fourth proportional to 31,757.60, 47,639.58 and 8,384.03 is: 12,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.60 : 47,639.58 = 8,384.03 : x
  2. Step 2: Convert to fraction form
    31,757.60/47,639.58 = 8,384.03/x
  3. Step 3: Cross multiply
    31,757.60x = 47,639.58 × 8,384.03
  4. Step 4: Simplify right side
    31,757.60x = 399,411,429.71
  5. Step 5: Solve for x
    x = 399,411,429.71/31,757.60
  6. Step 6: Final answer
    x = 12,576.88

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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.