Home / 20,560,945.68-28,374,274.08-11,393,741.52

Finding the Fourth Proportional to 20,560,945.68, 28,374,274.08 and 11,393,741.52

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Solution

The fourth proportional to 20,560,945.68, 28,374,274.08 and 11,393,741.52 is: 15,723,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560,945.68 : 28,374,274.08 = 11,393,741.52 : x
  2. Step 2: Convert to fraction form
    20,560,945.68/28,374,274.08 = 11,393,741.52/x
  3. Step 3: Cross multiply
    20,560,945.68x = 28,374,274.08 × 11,393,741.52
  4. Step 4: Simplify right side
    20,560,945.68x = 323,289,144,685,155.75
  5. Step 5: Solve for x
    x = 323,289,144,685,155.75/20,560,945.68
  6. Step 6: Final answer
    x = 15,723,456.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.