Home / 28,656.07-39,551.57-21,867.73

Finding the Fourth Proportional to 28,656.07, 39,551.57 and 21,867.73

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Solution

The fourth proportional to 28,656.07, 39,551.57 and 21,867.73 is: 30,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.07 : 39,551.57 = 21,867.73 : x
  2. Step 2: Convert to fraction form
    28,656.07/39,551.57 = 21,867.73/x
  3. Step 3: Cross multiply
    28,656.07x = 39,551.57 × 21,867.73
  4. Step 4: Simplify right side
    28,656.07x = 864,903,053.84
  5. Step 5: Solve for x
    x = 864,903,053.84/28,656.07
  6. Step 6: Final answer
    x = 30,182.19

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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.