Home / 28,103.91-38,801.48-18,036.69

Finding the Fourth Proportional to 28,103.91, 38,801.48 and 18,036.69

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Solution

The fourth proportional to 28,103.91, 38,801.48 and 18,036.69 is: 24,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.91 : 38,801.48 = 18,036.69 : x
  2. Step 2: Convert to fraction form
    28,103.91/38,801.48 = 18,036.69/x
  3. Step 3: Cross multiply
    28,103.91x = 38,801.48 × 18,036.69
  4. Step 4: Simplify right side
    28,103.91x = 699,850,266.30
  5. Step 5: Solve for x
    x = 699,850,266.30/28,103.91
  6. Step 6: Final answer
    x = 24,902.24

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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.