Home / 28,709.40-39,618.78-16,134.14

Finding the Fourth Proportional to 28,709.40, 39,618.78 and 16,134.14

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Solution

The fourth proportional to 28,709.40, 39,618.78 and 16,134.14 is: 22,265.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.40 : 39,618.78 = 16,134.14 : x
  2. Step 2: Convert to fraction form
    28,709.40/39,618.78 = 16,134.14/x
  3. Step 3: Cross multiply
    28,709.40x = 39,618.78 × 16,134.14
  4. Step 4: Simplify right side
    28,709.40x = 639,214,943.15
  5. Step 5: Solve for x
    x = 639,214,943.15/28,709.40
  6. Step 6: Final answer
    x = 22,265.01

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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.