Home / 31,846.53-47,768.05-13,126.21

Finding the Fourth Proportional to 31,846.53, 47,768.05 and 13,126.21

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Solution

The fourth proportional to 31,846.53, 47,768.05 and 13,126.21 is: 19,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,846.53 : 47,768.05 = 13,126.21 : x
  2. Step 2: Convert to fraction form
    31,846.53/47,768.05 = 13,126.21/x
  3. Step 3: Cross multiply
    31,846.53x = 47,768.05 × 13,126.21
  4. Step 4: Simplify right side
    31,846.53x = 627,013,455.59
  5. Step 5: Solve for x
    x = 627,013,455.59/31,846.53
  6. Step 6: Final answer
    x = 19,688.60

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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.