Home / 33,087.39-45,667.80-20,351.52

Finding the Fourth Proportional to 33,087.39, 45,667.80 and 20,351.52

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Solution

The fourth proportional to 33,087.39, 45,667.80 and 20,351.52 is: 28,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,087.39 : 45,667.80 = 20,351.52 : x
  2. Step 2: Convert to fraction form
    33,087.39/45,667.80 = 20,351.52/x
  3. Step 3: Cross multiply
    33,087.39x = 45,667.80 × 20,351.52
  4. Step 4: Simplify right side
    33,087.39x = 929,409,145.06
  5. Step 5: Solve for x
    x = 929,409,145.06/33,087.39
  6. Step 6: Final answer
    x = 28,089.53

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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.