Home / 39,730.68-54,829.26-21,826.80

Finding the Fourth Proportional to 39,730.68, 54,829.26 and 21,826.80

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Solution

The fourth proportional to 39,730.68, 54,829.26 and 21,826.80 is: 30,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.68 : 54,829.26 = 21,826.80 : x
  2. Step 2: Convert to fraction form
    39,730.68/54,829.26 = 21,826.80/x
  3. Step 3: Cross multiply
    39,730.68x = 54,829.26 × 21,826.80
  4. Step 4: Simplify right side
    39,730.68x = 1,196,747,292.17
  5. Step 5: Solve for x
    x = 1,196,747,292.17/39,730.68
  6. Step 6: Final answer
    x = 30,121.49

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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.