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Finding the Fourth Proportional to 17,784.30, 26,676.45 and 15,480.30

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Solution

The fourth proportional to 17,784.30, 26,676.45 and 15,480.30 is: 23,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,784.30 : 26,676.45 = 15,480.30 : x
  2. Step 2: Convert to fraction form
    17,784.30/26,676.45 = 15,480.30/x
  3. Step 3: Cross multiply
    17,784.30x = 26,676.45 × 15,480.30
  4. Step 4: Simplify right side
    17,784.30x = 412,959,448.94
  5. Step 5: Solve for x
    x = 412,959,448.94/17,784.30
  6. Step 6: Final answer
    x = 23,220.45

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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.