Home / 38,615.11-53,276.46-21,616.85

Finding the Fourth Proportional to 38,615.11, 53,276.46 and 21,616.85

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Solution

The fourth proportional to 38,615.11, 53,276.46 and 21,616.85 is: 29,824.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,615.11 : 53,276.46 = 21,616.85 : x
  2. Step 2: Convert to fraction form
    38,615.11/53,276.46 = 21,616.85/x
  3. Step 3: Cross multiply
    38,615.11x = 53,276.46 × 21,616.85
  4. Step 4: Simplify right side
    38,615.11x = 1,151,669,244.35
  5. Step 5: Solve for x
    x = 1,151,669,244.35/38,615.11
  6. Step 6: Final answer
    x = 29,824.32

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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.