Home / 28,069.84-38,736.30-15,494.50

Finding the Fourth Proportional to 28,069.84, 38,736.30 and 15,494.50

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Solution

The fourth proportional to 28,069.84, 38,736.30 and 15,494.50 is: 21,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.84 : 38,736.30 = 15,494.50 : x
  2. Step 2: Convert to fraction form
    28,069.84/38,736.30 = 15,494.50/x
  3. Step 3: Cross multiply
    28,069.84x = 38,736.30 × 15,494.50
  4. Step 4: Simplify right side
    28,069.84x = 600,199,600.35
  5. Step 5: Solve for x
    x = 600,199,600.35/28,069.84
  6. Step 6: Final answer
    x = 21,382.37

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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.