Home / 28,095.38-38,771.62-15,520.94

Finding the Fourth Proportional to 28,095.38, 38,771.62 and 15,520.94

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Solution

The fourth proportional to 28,095.38, 38,771.62 and 15,520.94 is: 21,418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.38 : 38,771.62 = 15,520.94 : x
  2. Step 2: Convert to fraction form
    28,095.38/38,771.62 = 15,520.94/x
  3. Step 3: Cross multiply
    28,095.38x = 38,771.62 × 15,520.94
  4. Step 4: Simplify right side
    28,095.38x = 601,771,987.72
  5. Step 5: Solve for x
    x = 601,771,987.72/28,095.38
  6. Step 6: Final answer
    x = 21,418.89

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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.