Home / 19,087.80-28,608.13-13,840.82

Finding the Fourth Proportional to 19,087.80, 28,608.13 and 13,840.82

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Solution

The fourth proportional to 19,087.80, 28,608.13 and 13,840.82 is: 20,744.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.80 : 28,608.13 = 13,840.82 : x
  2. Step 2: Convert to fraction form
    19,087.80/28,608.13 = 13,840.82/x
  3. Step 3: Cross multiply
    19,087.80x = 28,608.13 × 13,840.82
  4. Step 4: Simplify right side
    19,087.80x = 395,959,959.41
  5. Step 5: Solve for x
    x = 395,959,959.41/19,087.80
  6. Step 6: Final answer
    x = 20,744.14

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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.