Home / 19,087.79-28,608.14-13,840.81

Finding the Fourth Proportional to 19,087.79, 28,608.14 and 13,840.81

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Solution

The fourth proportional to 19,087.79, 28,608.14 and 13,840.81 is: 20,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.79 : 28,608.14 = 13,840.81 : x
  2. Step 2: Convert to fraction form
    19,087.79/28,608.14 = 13,840.81/x
  3. Step 3: Cross multiply
    19,087.79x = 28,608.14 × 13,840.81
  4. Step 4: Simplify right side
    19,087.79x = 395,959,793.28
  5. Step 5: Solve for x
    x = 395,959,793.28/19,087.79
  6. Step 6: Final answer
    x = 20,744.15

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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.