Home / 31,905.15-47,857.58-9,717.74

Finding the Fourth Proportional to 31,905.15, 47,857.58 and 9,717.74

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Solution

The fourth proportional to 31,905.15, 47,857.58 and 9,717.74 is: 14,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.15 : 47,857.58 = 9,717.74 : x
  2. Step 2: Convert to fraction form
    31,905.15/47,857.58 = 9,717.74/x
  3. Step 3: Cross multiply
    31,905.15x = 47,857.58 × 9,717.74
  4. Step 4: Simplify right side
    31,905.15x = 465,067,519.47
  5. Step 5: Solve for x
    x = 465,067,519.47/31,905.15
  6. Step 6: Final answer
    x = 14,576.57

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1.5x scale

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.