Home / 28,945.24-43,404.90-10,221.40

Finding the Fourth Proportional to 28,945.24, 43,404.90 and 10,221.40

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Solution

The fourth proportional to 28,945.24, 43,404.90 and 10,221.40 is: 15,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.24 : 43,404.90 = 10,221.40 : x
  2. Step 2: Convert to fraction form
    28,945.24/43,404.90 = 10,221.40/x
  3. Step 3: Cross multiply
    28,945.24x = 43,404.90 × 10,221.40
  4. Step 4: Simplify right side
    28,945.24x = 443,658,844.86
  5. Step 5: Solve for x
    x = 443,658,844.86/28,945.24
  6. Step 6: Final answer
    x = 15,327.52

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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.