Home / 28,203.94-38,894.47-16,871.55

Finding the Fourth Proportional to 28,203.94, 38,894.47 and 16,871.55

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Solution

The fourth proportional to 28,203.94, 38,894.47 and 16,871.55 is: 23,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.94 : 38,894.47 = 16,871.55 : x
  2. Step 2: Convert to fraction form
    28,203.94/38,894.47 = 16,871.55/x
  3. Step 3: Cross multiply
    28,203.94x = 38,894.47 × 16,871.55
  4. Step 4: Simplify right side
    28,203.94x = 656,209,995.33
  5. Step 5: Solve for x
    x = 656,209,995.33/28,203.94
  6. Step 6: Final answer
    x = 23,266.61

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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.