Home / 28,469.16-39,223.35-19,847.25

Finding the Fourth Proportional to 28,469.16, 39,223.35 and 19,847.25

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Solution

The fourth proportional to 28,469.16, 39,223.35 and 19,847.25 is: 27,344.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.16 : 39,223.35 = 19,847.25 : x
  2. Step 2: Convert to fraction form
    28,469.16/39,223.35 = 19,847.25/x
  3. Step 3: Cross multiply
    28,469.16x = 39,223.35 × 19,847.25
  4. Step 4: Simplify right side
    28,469.16x = 778,475,633.29
  5. Step 5: Solve for x
    x = 778,475,633.29/28,469.16
  6. Step 6: Final answer
    x = 27,344.52

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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.