Home / 28,900.14-39,879.87-16,953.90

Finding the Fourth Proportional to 28,900.14, 39,879.87 and 16,953.90

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Solution

The fourth proportional to 28,900.14, 39,879.87 and 16,953.90 is: 23,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.14 : 39,879.87 = 16,953.90 : x
  2. Step 2: Convert to fraction form
    28,900.14/39,879.87 = 16,953.90/x
  3. Step 3: Cross multiply
    28,900.14x = 39,879.87 × 16,953.90
  4. Step 4: Simplify right side
    28,900.14x = 676,119,327.99
  5. Step 5: Solve for x
    x = 676,119,327.99/28,900.14
  6. Step 6: Final answer
    x = 23,395.02

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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.