Home / 31,748.70-47,639.25-13,043.10

Finding the Fourth Proportional to 31,748.70, 47,639.25 and 13,043.10

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Solution

The fourth proportional to 31,748.70, 47,639.25 and 13,043.10 is: 19,571.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.70 : 47,639.25 = 13,043.10 : x
  2. Step 2: Convert to fraction form
    31,748.70/47,639.25 = 13,043.10/x
  3. Step 3: Cross multiply
    31,748.70x = 47,639.25 × 13,043.10
  4. Step 4: Simplify right side
    31,748.70x = 621,363,501.68
  5. Step 5: Solve for x
    x = 621,363,501.68/31,748.70
  6. Step 6: Final answer
    x = 19,571.31

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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.