Home / 28,069.76-38,736.27-15,494.51

Finding the Fourth Proportional to 28,069.76, 38,736.27 and 15,494.51

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Solution

The fourth proportional to 28,069.76, 38,736.27 and 15,494.51 is: 21,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.76 : 38,736.27 = 15,494.51 : x
  2. Step 2: Convert to fraction form
    28,069.76/38,736.27 = 15,494.51/x
  3. Step 3: Cross multiply
    28,069.76x = 38,736.27 × 15,494.51
  4. Step 4: Simplify right side
    28,069.76x = 600,199,329.20
  5. Step 5: Solve for x
    x = 600,199,329.20/28,069.76
  6. Step 6: Final answer
    x = 21,382.42

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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.