Home / 28,069.62-38,734.65-15,491.94

Finding the Fourth Proportional to 28,069.62, 38,734.65 and 15,491.94

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Solution

The fourth proportional to 28,069.62, 38,734.65 and 15,491.94 is: 21,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.62 : 38,734.65 = 15,491.94 : x
  2. Step 2: Convert to fraction form
    28,069.62/38,734.65 = 15,491.94/x
  3. Step 3: Cross multiply
    28,069.62x = 38,734.65 × 15,491.94
  4. Step 4: Simplify right side
    28,069.62x = 600,074,873.72
  5. Step 5: Solve for x
    x = 600,074,873.72/28,069.62
  6. Step 6: Final answer
    x = 21,378.09

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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.