Home / 28,736.27-39,656.08-15,990.62

Finding the Fourth Proportional to 28,736.27, 39,656.08 and 15,990.62

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Solution

The fourth proportional to 28,736.27, 39,656.08 and 15,990.62 is: 22,067.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.27 : 39,656.08 = 15,990.62 : x
  2. Step 2: Convert to fraction form
    28,736.27/39,656.08 = 15,990.62/x
  3. Step 3: Cross multiply
    28,736.27x = 39,656.08 × 15,990.62
  4. Step 4: Simplify right side
    28,736.27x = 634,125,127.68
  5. Step 5: Solve for x
    x = 634,125,127.68/28,736.27
  6. Step 6: Final answer
    x = 22,067.07

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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.