Home / 30,790.09-42,497.12-20,016.22

Finding the Fourth Proportional to 30,790.09, 42,497.12 and 20,016.22

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Solution

The fourth proportional to 30,790.09, 42,497.12 and 20,016.22 is: 27,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.09 : 42,497.12 = 20,016.22 : x
  2. Step 2: Convert to fraction form
    30,790.09/42,497.12 = 20,016.22/x
  3. Step 3: Cross multiply
    30,790.09x = 42,497.12 × 20,016.22
  4. Step 4: Simplify right side
    30,790.09x = 850,631,703.29
  5. Step 5: Solve for x
    x = 850,631,703.29/30,790.09
  6. Step 6: Final answer
    x = 27,626.80

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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.