Home / 20,593.21-28,421.66-13,040.23

Finding the Fourth Proportional to 20,593.21, 28,421.66 and 13,040.23

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Solution

The fourth proportional to 20,593.21, 28,421.66 and 13,040.23 is: 17,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.21 : 28,421.66 = 13,040.23 : x
  2. Step 2: Convert to fraction form
    20,593.21/28,421.66 = 13,040.23/x
  3. Step 3: Cross multiply
    20,593.21x = 28,421.66 × 13,040.23
  4. Step 4: Simplify right side
    20,593.21x = 370,624,944.93
  5. Step 5: Solve for x
    x = 370,624,944.93/20,593.21
  6. Step 6: Final answer
    x = 17,997.44

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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.