Home / 28,860.11-43,289.94-15,539.35

Finding the Fourth Proportional to 28,860.11, 43,289.94 and 15,539.35

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Solution

The fourth proportional to 28,860.11, 43,289.94 and 15,539.35 is: 23,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860.11 : 43,289.94 = 15,539.35 : x
  2. Step 2: Convert to fraction form
    28,860.11/43,289.94 = 15,539.35/x
  3. Step 3: Cross multiply
    28,860.11x = 43,289.94 × 15,539.35
  4. Step 4: Simplify right side
    28,860.11x = 672,697,420.91
  5. Step 5: Solve for x
    x = 672,697,420.91/28,860.11
  6. Step 6: Final answer
    x = 23,308.90

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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.