Home / 28,148.18-38,849.22-18,078.93

Finding the Fourth Proportional to 28,148.18, 38,849.22 and 18,078.93

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Solution

The fourth proportional to 28,148.18, 38,849.22 and 18,078.93 is: 24,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.18 : 38,849.22 = 18,078.93 : x
  2. Step 2: Convert to fraction form
    28,148.18/38,849.22 = 18,078.93/x
  3. Step 3: Cross multiply
    28,148.18x = 38,849.22 × 18,078.93
  4. Step 4: Simplify right side
    28,148.18x = 702,352,328.93
  5. Step 5: Solve for x
    x = 702,352,328.93/28,148.18
  6. Step 6: Final answer
    x = 24,951.97

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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.