Home / 28,917.99-43,389.54-10,211.40

Finding the Fourth Proportional to 28,917.99, 43,389.54 and 10,211.40

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Solution

The fourth proportional to 28,917.99, 43,389.54 and 10,211.40 is: 15,321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.99 : 43,389.54 = 10,211.40 : x
  2. Step 2: Convert to fraction form
    28,917.99/43,389.54 = 10,211.40/x
  3. Step 3: Cross multiply
    28,917.99x = 43,389.54 × 10,211.40
  4. Step 4: Simplify right side
    28,917.99x = 443,067,948.76
  5. Step 5: Solve for x
    x = 443,067,948.76/28,917.99
  6. Step 6: Final answer
    x = 15,321.53

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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.