Home / 31,947.10-47,929.91-13,223.68

Finding the Fourth Proportional to 31,947.10, 47,929.91 and 13,223.68

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Solution

The fourth proportional to 31,947.10, 47,929.91 and 13,223.68 is: 19,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,947.10 : 47,929.91 = 13,223.68 : x
  2. Step 2: Convert to fraction form
    31,947.10/47,929.91 = 13,223.68/x
  3. Step 3: Cross multiply
    31,947.10x = 47,929.91 × 13,223.68
  4. Step 4: Simplify right side
    31,947.10x = 633,809,792.27
  5. Step 5: Solve for x
    x = 633,809,792.27/31,947.10
  6. Step 6: Final answer
    x = 19,839.35

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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.