Home / 28,623.68-39,480.72-27,660.32

Finding the Fourth Proportional to 28,623.68, 39,480.72 and 27,660.32

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Solution

The fourth proportional to 28,623.68, 39,480.72 and 27,660.32 is: 38,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.68 : 39,480.72 = 27,660.32 : x
  2. Step 2: Convert to fraction form
    28,623.68/39,480.72 = 27,660.32/x
  3. Step 3: Cross multiply
    28,623.68x = 39,480.72 × 27,660.32
  4. Step 4: Simplify right side
    28,623.68x = 1,092,049,349.03
  5. Step 5: Solve for x
    x = 1,092,049,349.03/28,623.68
  6. Step 6: Final answer
    x = 38,151.95

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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.