Home / 39,979.10-55,170.79-22,073.72

Finding the Fourth Proportional to 39,979.10, 55,170.79 and 22,073.72

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Solution

The fourth proportional to 39,979.10, 55,170.79 and 22,073.72 is: 30,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.10 : 55,170.79 = 22,073.72 : x
  2. Step 2: Convert to fraction form
    39,979.10/55,170.79 = 22,073.72/x
  3. Step 3: Cross multiply
    39,979.10x = 55,170.79 × 22,073.72
  4. Step 4: Simplify right side
    39,979.10x = 1,217,824,239.60
  5. Step 5: Solve for x
    x = 1,217,824,239.60/39,979.10
  6. Step 6: Final answer
    x = 30,461.52

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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.