Home / 38,857.28-53,622.95-21,861.51

Finding the Fourth Proportional to 38,857.28, 53,622.95 and 21,861.51

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Solution

The fourth proportional to 38,857.28, 53,622.95 and 21,861.51 is: 30,168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,857.28 : 53,622.95 = 21,861.51 : x
  2. Step 2: Convert to fraction form
    38,857.28/53,622.95 = 21,861.51/x
  3. Step 3: Cross multiply
    38,857.28x = 53,622.95 × 21,861.51
  4. Step 4: Simplify right side
    38,857.28x = 1,172,278,548.35
  5. Step 5: Solve for x
    x = 1,172,278,548.35/38,857.28
  6. Step 6: Final answer
    x = 30,168.83

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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.