Home / 23,161.80-31,963.48-13,599.20

Finding the Fourth Proportional to 23,161.80, 31,963.48 and 13,599.20

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Solution

The fourth proportional to 23,161.80, 31,963.48 and 13,599.20 is: 18,767.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,161.80 : 31,963.48 = 13,599.20 : x
  2. Step 2: Convert to fraction form
    23,161.80/31,963.48 = 13,599.20/x
  3. Step 3: Cross multiply
    23,161.80x = 31,963.48 × 13,599.20
  4. Step 4: Simplify right side
    23,161.80x = 434,677,757.22
  5. Step 5: Solve for x
    x = 434,677,757.22/23,161.80
  6. Step 6: Final answer
    x = 18,767.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.