Home / 20,932.56-28,857.06-14,962.05

Finding the Fourth Proportional to 20,932.56, 28,857.06 and 14,962.05

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Solution

The fourth proportional to 20,932.56, 28,857.06 and 14,962.05 is: 20,626.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.56 : 28,857.06 = 14,962.05 : x
  2. Step 2: Convert to fraction form
    20,932.56/28,857.06 = 14,962.05/x
  3. Step 3: Cross multiply
    20,932.56x = 28,857.06 × 14,962.05
  4. Step 4: Simplify right side
    20,932.56x = 431,760,774.57
  5. Step 5: Solve for x
    x = 431,760,774.57/20,932.56
  6. Step 6: Final answer
    x = 20,626.28

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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.