Home / 20,033.81-27,669.34-13,649.32

Finding the Fourth Proportional to 20,033.81, 27,669.34 and 13,649.32

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Solution

The fourth proportional to 20,033.81, 27,669.34 and 13,649.32 is: 18,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.81 : 27,669.34 = 13,649.32 : x
  2. Step 2: Convert to fraction form
    20,033.81/27,669.34 = 13,649.32/x
  3. Step 3: Cross multiply
    20,033.81x = 27,669.34 × 13,649.32
  4. Step 4: Simplify right side
    20,033.81x = 377,667,537.50
  5. Step 5: Solve for x
    x = 377,667,537.50/20,033.81
  6. Step 6: Final answer
    x = 18,851.51

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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.