Home / 28,754.19-39,680.75-16,178.94

Finding the Fourth Proportional to 28,754.19, 39,680.75 and 16,178.94

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Solution

The fourth proportional to 28,754.19, 39,680.75 and 16,178.94 is: 22,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.19 : 39,680.75 = 16,178.94 : x
  2. Step 2: Convert to fraction form
    28,754.19/39,680.75 = 16,178.94/x
  3. Step 3: Cross multiply
    28,754.19x = 39,680.75 × 16,178.94
  4. Step 4: Simplify right side
    28,754.19x = 641,992,513.85
  5. Step 5: Solve for x
    x = 641,992,513.85/28,754.19
  6. Step 6: Final answer
    x = 22,326.92

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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.