Home / 26,420.28-39,593.44-18,989.88

Finding the Fourth Proportional to 26,420.28, 39,593.44 and 18,989.88

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Solution

The fourth proportional to 26,420.28, 39,593.44 and 18,989.88 is: 28,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.28 : 39,593.44 = 18,989.88 : x
  2. Step 2: Convert to fraction form
    26,420.28/39,593.44 = 18,989.88/x
  3. Step 3: Cross multiply
    26,420.28x = 39,593.44 × 18,989.88
  4. Step 4: Simplify right side
    26,420.28x = 751,874,674.39
  5. Step 5: Solve for x
    x = 751,874,674.39/26,420.28
  6. Step 6: Final answer
    x = 28,458.24

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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.