Home / 20,309.56-30,317.21-17,553.94

Finding the Fourth Proportional to 20,309.56, 30,317.21 and 17,553.94

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Solution

The fourth proportional to 20,309.56, 30,317.21 and 17,553.94 is: 26,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.56 : 30,317.21 = 17,553.94 : x
  2. Step 2: Convert to fraction form
    20,309.56/30,317.21 = 17,553.94/x
  3. Step 3: Cross multiply
    20,309.56x = 30,317.21 × 17,553.94
  4. Step 4: Simplify right side
    20,309.56x = 532,186,485.31
  5. Step 5: Solve for x
    x = 532,186,485.31/20,309.56
  6. Step 6: Final answer
    x = 26,203.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.