Home / 20,556.12-30,848.04-8,870.52

Finding the Fourth Proportional to 20,556.12, 30,848.04 and 8,870.52

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Solution

The fourth proportional to 20,556.12, 30,848.04 and 8,870.52 is: 13,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.12 : 30,848.04 = 8,870.52 : x
  2. Step 2: Convert to fraction form
    20,556.12/30,848.04 = 8,870.52/x
  3. Step 3: Cross multiply
    20,556.12x = 30,848.04 × 8,870.52
  4. Step 4: Simplify right side
    20,556.12x = 273,638,155.78
  5. Step 5: Solve for x
    x = 273,638,155.78/20,556.12
  6. Step 6: Final answer
    x = 13,311.76

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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.