Home / 38,454.06-53,076.27-21,696.78

Finding the Fourth Proportional to 38,454.06, 53,076.27 and 21,696.78

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Solution

The fourth proportional to 38,454.06, 53,076.27 and 21,696.78 is: 29,947.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.06 : 53,076.27 = 21,696.78 : x
  2. Step 2: Convert to fraction form
    38,454.06/53,076.27 = 21,696.78/x
  3. Step 3: Cross multiply
    38,454.06x = 53,076.27 × 21,696.78
  4. Step 4: Simplify right side
    38,454.06x = 1,151,584,153.41
  5. Step 5: Solve for x
    x = 1,151,584,153.41/38,454.06
  6. Step 6: Final answer
    x = 29,947.01

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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.