Home / 20,769.48-31,102.38-17,322.12

Finding the Fourth Proportional to 20,769.48, 31,102.38 and 17,322.12

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Solution

The fourth proportional to 20,769.48, 31,102.38 and 17,322.12 is: 25,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769.48 : 31,102.38 = 17,322.12 : x
  2. Step 2: Convert to fraction form
    20,769.48/31,102.38 = 17,322.12/x
  3. Step 3: Cross multiply
    20,769.48x = 31,102.38 × 17,322.12
  4. Step 4: Simplify right side
    20,769.48x = 538,759,158.65
  5. Step 5: Solve for x
    x = 538,759,158.65/20,769.48
  6. Step 6: Final answer
    x = 25,939.94

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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.