Home / 31,898.07-47,857.38-9,715.71

Finding the Fourth Proportional to 31,898.07, 47,857.38 and 9,715.71

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Solution

The fourth proportional to 31,898.07, 47,857.38 and 9,715.71 is: 14,576.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,898.07 : 47,857.38 = 9,715.71 : x
  2. Step 2: Convert to fraction form
    31,898.07/47,857.38 = 9,715.71/x
  3. Step 3: Cross multiply
    31,898.07x = 47,857.38 × 9,715.71
  4. Step 4: Simplify right side
    31,898.07x = 464,968,425.44
  5. Step 5: Solve for x
    x = 464,968,425.44/31,898.07
  6. Step 6: Final answer
    x = 14,576.69

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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.