Home / 28,218.94-38,943.32-16,886.23

Finding the Fourth Proportional to 28,218.94, 38,943.32 and 16,886.23

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Solution

The fourth proportional to 28,218.94, 38,943.32 and 16,886.23 is: 23,303.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.94 : 38,943.32 = 16,886.23 : x
  2. Step 2: Convert to fraction form
    28,218.94/38,943.32 = 16,886.23/x
  3. Step 3: Cross multiply
    28,218.94x = 38,943.32 × 16,886.23
  4. Step 4: Simplify right side
    28,218.94x = 657,605,951.96
  5. Step 5: Solve for x
    x = 657,605,951.96/28,218.94
  6. Step 6: Final answer
    x = 23,303.71

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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.