Home / 23,048.80-31,802.88-13,618.96

Finding the Fourth Proportional to 23,048.80, 31,802.88 and 13,618.96

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Solution

The fourth proportional to 23,048.80, 31,802.88 and 13,618.96 is: 18,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,048.80 : 31,802.88 = 13,618.96 : x
  2. Step 2: Convert to fraction form
    23,048.80/31,802.88 = 13,618.96/x
  3. Step 3: Cross multiply
    23,048.80x = 31,802.88 × 13,618.96
  4. Step 4: Simplify right side
    23,048.80x = 433,122,150.60
  5. Step 5: Solve for x
    x = 433,122,150.60/23,048.80
  6. Step 6: Final answer
    x = 18,791.53

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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.