Home / 28,758.48-43,107-20,525.52

Finding the Fourth Proportional to 28,758.48, 43,107 and 20,525.52

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Solution

The fourth proportional to 28,758.48, 43,107 and 20,525.52 is: 30,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.48 : 43,107 = 20,525.52 : x
  2. Step 2: Convert to fraction form
    28,758.48/43,107 = 20,525.52/x
  3. Step 3: Cross multiply
    28,758.48x = 43,107 × 20,525.52
  4. Step 4: Simplify right side
    28,758.48x = 884,793,590.64
  5. Step 5: Solve for x
    x = 884,793,590.64/28,758.48
  6. Step 6: Final answer
    x = 30,766.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.