Home / 38,896.40-53,713.86-30,996.76

Finding the Fourth Proportional to 38,896.40, 53,713.86 and 30,996.76

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Solution

The fourth proportional to 38,896.40, 53,713.86 and 30,996.76 is: 42,804.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.40 : 53,713.86 = 30,996.76 : x
  2. Step 2: Convert to fraction form
    38,896.40/53,713.86 = 30,996.76/x
  3. Step 3: Cross multiply
    38,896.40x = 53,713.86 × 30,996.76
  4. Step 4: Simplify right side
    38,896.40x = 1,664,955,627.09
  5. Step 5: Solve for x
    x = 1,664,955,627.09/38,896.40
  6. Step 6: Final answer
    x = 42,804.88

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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.