Home / 28,106.24-42,122.79-11,446.76

Finding the Fourth Proportional to 28,106.24, 42,122.79 and 11,446.76

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Solution

The fourth proportional to 28,106.24, 42,122.79 and 11,446.76 is: 17,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.24 : 42,122.79 = 11,446.76 : x
  2. Step 2: Convert to fraction form
    28,106.24/42,122.79 = 11,446.76/x
  3. Step 3: Cross multiply
    28,106.24x = 42,122.79 × 11,446.76
  4. Step 4: Simplify right side
    28,106.24x = 482,169,257.05
  5. Step 5: Solve for x
    x = 482,169,257.05/28,106.24
  6. Step 6: Final answer
    x = 17,155.24

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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.