Home / 28,469.65-39,285.14-16,530.66

Finding the Fourth Proportional to 28,469.65, 39,285.14 and 16,530.66

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Solution

The fourth proportional to 28,469.65, 39,285.14 and 16,530.66 is: 22,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.65 : 39,285.14 = 16,530.66 : x
  2. Step 2: Convert to fraction form
    28,469.65/39,285.14 = 16,530.66/x
  3. Step 3: Cross multiply
    28,469.65x = 39,285.14 × 16,530.66
  4. Step 4: Simplify right side
    28,469.65x = 649,409,013.31
  5. Step 5: Solve for x
    x = 649,409,013.31/28,469.65
  6. Step 6: Final answer
    x = 22,810.57

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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.