Home / 31,686.47-47,576.43-17,673.87

Finding the Fourth Proportional to 31,686.47, 47,576.43 and 17,673.87

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Solution

The fourth proportional to 31,686.47, 47,576.43 and 17,673.87 is: 26,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686.47 : 47,576.43 = 17,673.87 : x
  2. Step 2: Convert to fraction form
    31,686.47/47,576.43 = 17,673.87/x
  3. Step 3: Cross multiply
    31,686.47x = 47,576.43 × 17,673.87
  4. Step 4: Simplify right side
    31,686.47x = 840,859,817.30
  5. Step 5: Solve for x
    x = 840,859,817.30/31,686.47
  6. Step 6: Final answer
    x = 26,536.87

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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.