Home / 20,351.56-30,501.76-11,591.40

Finding the Fourth Proportional to 20,351.56, 30,501.76 and 11,591.40

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Solution

The fourth proportional to 20,351.56, 30,501.76 and 11,591.40 is: 17,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.56 : 30,501.76 = 11,591.40 : x
  2. Step 2: Convert to fraction form
    20,351.56/30,501.76 = 11,591.40/x
  3. Step 3: Cross multiply
    20,351.56x = 30,501.76 × 11,591.40
  4. Step 4: Simplify right side
    20,351.56x = 353,558,100.86
  5. Step 5: Solve for x
    x = 353,558,100.86/20,351.56
  6. Step 6: Final answer
    x = 17,372.53

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1.5x scale

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.