Home / 28,956.64-39,963.84-16,381.12

Finding the Fourth Proportional to 28,956.64, 39,963.84 and 16,381.12

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Solution

The fourth proportional to 28,956.64, 39,963.84 and 16,381.12 is: 22,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.64 : 39,963.84 = 16,381.12 : x
  2. Step 2: Convert to fraction form
    28,956.64/39,963.84 = 16,381.12/x
  3. Step 3: Cross multiply
    28,956.64x = 39,963.84 × 16,381.12
  4. Step 4: Simplify right side
    28,956.64x = 654,652,458.70
  5. Step 5: Solve for x
    x = 654,652,458.70/28,956.64
  6. Step 6: Final answer
    x = 22,608.03

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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.