Home / 38,928.40-53,710.08-21,926.70

Finding the Fourth Proportional to 38,928.40, 53,710.08 and 21,926.70

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Solution

The fourth proportional to 38,928.40, 53,710.08 and 21,926.70 is: 30,252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928.40 : 53,710.08 = 21,926.70 : x
  2. Step 2: Convert to fraction form
    38,928.40/53,710.08 = 21,926.70/x
  3. Step 3: Cross multiply
    38,928.40x = 53,710.08 × 21,926.70
  4. Step 4: Simplify right side
    38,928.40x = 1,177,684,811.14
  5. Step 5: Solve for x
    x = 1,177,684,811.14/38,928.40
  6. Step 6: Final answer
    x = 30,252.59

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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.