Home / 20,697.34-28,561.54-11,744.31

Finding the Fourth Proportional to 20,697.34, 28,561.54 and 11,744.31

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Solution

The fourth proportional to 20,697.34, 28,561.54 and 11,744.31 is: 16,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.34 : 28,561.54 = 11,744.31 : x
  2. Step 2: Convert to fraction form
    20,697.34/28,561.54 = 11,744.31/x
  3. Step 3: Cross multiply
    20,697.34x = 28,561.54 × 11,744.31
  4. Step 4: Simplify right side
    20,697.34x = 335,435,521.12
  5. Step 5: Solve for x
    x = 335,435,521.12/20,697.34
  6. Step 6: Final answer
    x = 16,206.70

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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.