Home / 19,222.84-28,856.13-12,902.41

Finding the Fourth Proportional to 19,222.84, 28,856.13 and 12,902.41

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Solution

The fourth proportional to 19,222.84, 28,856.13 and 12,902.41 is: 19,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.84 : 28,856.13 = 12,902.41 : x
  2. Step 2: Convert to fraction form
    19,222.84/28,856.13 = 12,902.41/x
  3. Step 3: Cross multiply
    19,222.84x = 28,856.13 × 12,902.41
  4. Step 4: Simplify right side
    19,222.84x = 372,313,620.27
  5. Step 5: Solve for x
    x = 372,313,620.27/19,222.84
  6. Step 6: Final answer
    x = 19,368.29

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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.