Home / 31,355.80-47,033.70-9,168.28

Finding the Fourth Proportional to 31,355.80, 47,033.70 and 9,168.28

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Solution

The fourth proportional to 31,355.80, 47,033.70 and 9,168.28 is: 13,752.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.80 : 47,033.70 = 9,168.28 : x
  2. Step 2: Convert to fraction form
    31,355.80/47,033.70 = 9,168.28/x
  3. Step 3: Cross multiply
    31,355.80x = 47,033.70 × 9,168.28
  4. Step 4: Simplify right side
    31,355.80x = 431,218,131.04
  5. Step 5: Solve for x
    x = 431,218,131.04/31,355.80
  6. Step 6: Final answer
    x = 13,752.42

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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.