Home / 39,221.74-54,119.91-22,451.50

Finding the Fourth Proportional to 39,221.74, 54,119.91 and 22,451.50

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Solution

The fourth proportional to 39,221.74, 54,119.91 and 22,451.50 is: 30,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,221.74 : 54,119.91 = 22,451.50 : x
  2. Step 2: Convert to fraction form
    39,221.74/54,119.91 = 22,451.50/x
  3. Step 3: Cross multiply
    39,221.74x = 54,119.91 × 22,451.50
  4. Step 4: Simplify right side
    39,221.74x = 1,215,073,159.37
  5. Step 5: Solve for x
    x = 1,215,073,159.37/39,221.74
  6. Step 6: Final answer
    x = 30,979.58

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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.