Home / 28,969.17-39,969.41-16,393.65

Finding the Fourth Proportional to 28,969.17, 39,969.41 and 16,393.65

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Solution

The fourth proportional to 28,969.17, 39,969.41 and 16,393.65 is: 22,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.17 : 39,969.41 = 16,393.65 : x
  2. Step 2: Convert to fraction form
    28,969.17/39,969.41 = 16,393.65/x
  3. Step 3: Cross multiply
    28,969.17x = 39,969.41 × 16,393.65
  4. Step 4: Simplify right side
    28,969.17x = 655,244,518.25
  5. Step 5: Solve for x
    x = 655,244,518.25/28,969.17
  6. Step 6: Final answer
    x = 22,618.68

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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.