Home / 28,155.22-38,818.92-18,065.86

Finding the Fourth Proportional to 28,155.22, 38,818.92 and 18,065.86

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Solution

The fourth proportional to 28,155.22, 38,818.92 and 18,065.86 is: 24,908.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155.22 : 38,818.92 = 18,065.86 : x
  2. Step 2: Convert to fraction form
    28,155.22/38,818.92 = 18,065.86/x
  3. Step 3: Cross multiply
    28,155.22x = 38,818.92 × 18,065.86
  4. Step 4: Simplify right side
    28,155.22x = 701,297,174.07
  5. Step 5: Solve for x
    x = 701,297,174.07/28,155.22
  6. Step 6: Final answer
    x = 24,908.25

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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.