Home / 28,617.08-39,491.43-18,020.66

Finding the Fourth Proportional to 28,617.08, 39,491.43 and 18,020.66

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Solution

The fourth proportional to 28,617.08, 39,491.43 and 18,020.66 is: 24,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.08 : 39,491.43 = 18,020.66 : x
  2. Step 2: Convert to fraction form
    28,617.08/39,491.43 = 18,020.66/x
  3. Step 3: Cross multiply
    28,617.08x = 39,491.43 × 18,020.66
  4. Step 4: Simplify right side
    28,617.08x = 711,661,632.94
  5. Step 5: Solve for x
    x = 711,661,632.94/28,617.08
  6. Step 6: Final answer
    x = 24,868.42

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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.