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Finding the Fourth Proportional to 17,661.30, 24,313.08 and 15,303.90

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Solution

The fourth proportional to 17,661.30, 24,313.08 and 15,303.90 is: 21,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.30 : 24,313.08 = 15,303.90 : x
  2. Step 2: Convert to fraction form
    17,661.30/24,313.08 = 15,303.90/x
  3. Step 3: Cross multiply
    17,661.30x = 24,313.08 × 15,303.90
  4. Step 4: Simplify right side
    17,661.30x = 372,084,945.01
  5. Step 5: Solve for x
    x = 372,084,945.01/17,661.30
  6. Step 6: Final answer
    x = 21,067.81

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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.