Home / 28,899.54-39,879.54-16,151.76

Finding the Fourth Proportional to 28,899.54, 39,879.54 and 16,151.76

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Solution

The fourth proportional to 28,899.54, 39,879.54 and 16,151.76 is: 22,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.54 : 39,879.54 = 16,151.76 : x
  2. Step 2: Convert to fraction form
    28,899.54/39,879.54 = 16,151.76/x
  3. Step 3: Cross multiply
    28,899.54x = 39,879.54 × 16,151.76
  4. Step 4: Simplify right side
    28,899.54x = 644,124,758.99
  5. Step 5: Solve for x
    x = 644,124,758.99/28,899.54
  6. Step 6: Final answer
    x = 22,288.41

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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.