Home / 20,697.48-28,561.73-11,744.45

Finding the Fourth Proportional to 20,697.48, 28,561.73 and 11,744.45

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Solution

The fourth proportional to 20,697.48, 28,561.73 and 11,744.45 is: 16,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.48 : 28,561.73 = 11,744.45 : x
  2. Step 2: Convert to fraction form
    20,697.48/28,561.73 = 11,744.45/x
  3. Step 3: Cross multiply
    20,697.48x = 28,561.73 × 11,744.45
  4. Step 4: Simplify right side
    20,697.48x = 335,441,809.90
  5. Step 5: Solve for x
    x = 335,441,809.90/20,697.48
  6. Step 6: Final answer
    x = 16,206.89

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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.