Home / 26,829.11-40,270.16-20,142.35

Finding the Fourth Proportional to 26,829.11, 40,270.16 and 20,142.35

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Solution

The fourth proportional to 26,829.11, 40,270.16 and 20,142.35 is: 30,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,829.11 : 40,270.16 = 20,142.35 : x
  2. Step 2: Convert to fraction form
    26,829.11/40,270.16 = 20,142.35/x
  3. Step 3: Cross multiply
    26,829.11x = 40,270.16 × 20,142.35
  4. Step 4: Simplify right side
    26,829.11x = 811,135,883.81
  5. Step 5: Solve for x
    x = 811,135,883.81/26,829.11
  6. Step 6: Final answer
    x = 30,233.43

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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.