Home / 26,205.52-39,275.47-20,636.87

Finding the Fourth Proportional to 26,205.52, 39,275.47 and 20,636.87

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Solution

The fourth proportional to 26,205.52, 39,275.47 and 20,636.87 is: 30,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,205.52 : 39,275.47 = 20,636.87 : x
  2. Step 2: Convert to fraction form
    26,205.52/39,275.47 = 20,636.87/x
  3. Step 3: Cross multiply
    26,205.52x = 39,275.47 × 20,636.87
  4. Step 4: Simplify right side
    26,205.52x = 810,522,768.58
  5. Step 5: Solve for x
    x = 810,522,768.58/26,205.52
  6. Step 6: Final answer
    x = 30,929.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.