Home / 18,490.05-27,709.56-17,615.25

Finding the Fourth Proportional to 18,490.05, 27,709.56 and 17,615.25

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Solution

The fourth proportional to 18,490.05, 27,709.56 and 17,615.25 is: 26,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.05 : 27,709.56 = 17,615.25 : x
  2. Step 2: Convert to fraction form
    18,490.05/27,709.56 = 17,615.25/x
  3. Step 3: Cross multiply
    18,490.05x = 27,709.56 × 17,615.25
  4. Step 4: Simplify right side
    18,490.05x = 488,110,826.79
  5. Step 5: Solve for x
    x = 488,110,826.79/18,490.05
  6. Step 6: Final answer
    x = 26,398.57

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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.