Home / 19,222.68-28,809.72-10,315.92

Finding the Fourth Proportional to 19,222.68, 28,809.72 and 10,315.92

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Solution

The fourth proportional to 19,222.68, 28,809.72 and 10,315.92 is: 15,460.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.68 : 28,809.72 = 10,315.92 : x
  2. Step 2: Convert to fraction form
    19,222.68/28,809.72 = 10,315.92/x
  3. Step 3: Cross multiply
    19,222.68x = 28,809.72 × 10,315.92
  4. Step 4: Simplify right side
    19,222.68x = 297,198,766.74
  5. Step 5: Solve for x
    x = 297,198,766.74/19,222.68
  6. Step 6: Final answer
    x = 15,460.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.