Home / 20,738.23-28,617.81-11,663.09

Finding the Fourth Proportional to 20,738.23, 28,617.81 and 11,663.09

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Solution

The fourth proportional to 20,738.23, 28,617.81 and 11,663.09 is: 16,094.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.23 : 28,617.81 = 11,663.09 : x
  2. Step 2: Convert to fraction form
    20,738.23/28,617.81 = 11,663.09/x
  3. Step 3: Cross multiply
    20,738.23x = 28,617.81 × 11,663.09
  4. Step 4: Simplify right side
    20,738.23x = 333,772,014.12
  5. Step 5: Solve for x
    x = 333,772,014.12/20,738.23
  6. Step 6: Final answer
    x = 16,094.53

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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.