Home / 19,613.28-27,040.32-16,243.68

Finding the Fourth Proportional to 19,613.28, 27,040.32 and 16,243.68

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Solution

The fourth proportional to 19,613.28, 27,040.32 and 16,243.68 is: 22,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.28 : 27,040.32 = 16,243.68 : x
  2. Step 2: Convert to fraction form
    19,613.28/27,040.32 = 16,243.68/x
  3. Step 3: Cross multiply
    19,613.28x = 27,040.32 × 16,243.68
  4. Step 4: Simplify right side
    19,613.28x = 439,234,305.18
  5. Step 5: Solve for x
    x = 439,234,305.18/19,613.28
  6. Step 6: Final answer
    x = 22,394.74

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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.