Home / 28,145.43-38,823.77-18,585.41

Finding the Fourth Proportional to 28,145.43, 38,823.77 and 18,585.41

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Solution

The fourth proportional to 28,145.43, 38,823.77 and 18,585.41 is: 25,636.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.43 : 38,823.77 = 18,585.41 : x
  2. Step 2: Convert to fraction form
    28,145.43/38,823.77 = 18,585.41/x
  3. Step 3: Cross multiply
    28,145.43x = 38,823.77 × 18,585.41
  4. Step 4: Simplify right side
    28,145.43x = 721,555,535.54
  5. Step 5: Solve for x
    x = 721,555,535.54/28,145.43
  6. Step 6: Final answer
    x = 25,636.69

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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.