Home / 39,979.40-55,170.52-22,074.02

Finding the Fourth Proportional to 39,979.40, 55,170.52 and 22,074.02

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Solution

The fourth proportional to 39,979.40, 55,170.52 and 22,074.02 is: 30,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.40 : 55,170.52 = 22,074.02 : x
  2. Step 2: Convert to fraction form
    39,979.40/55,170.52 = 22,074.02/x
  3. Step 3: Cross multiply
    39,979.40x = 55,170.52 × 22,074.02
  4. Step 4: Simplify right side
    39,979.40x = 1,217,835,037.74
  5. Step 5: Solve for x
    x = 1,217,835,037.74/39,979.40
  6. Step 6: Final answer
    x = 30,461.56

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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.