Home / 38,924.15-53,715.49-21,928.60

Finding the Fourth Proportional to 38,924.15, 53,715.49 and 21,928.60

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Solution

The fourth proportional to 38,924.15, 53,715.49 and 21,928.60 is: 30,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,924.15 : 53,715.49 = 21,928.60 : x
  2. Step 2: Convert to fraction form
    38,924.15/53,715.49 = 21,928.60/x
  3. Step 3: Cross multiply
    38,924.15x = 53,715.49 × 21,928.60
  4. Step 4: Simplify right side
    38,924.15x = 1,177,905,225.44
  5. Step 5: Solve for x
    x = 1,177,905,225.44/38,924.15
  6. Step 6: Final answer
    x = 30,261.55

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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.