Home / 19,156.50-28,742.85-13,645.26

Finding the Fourth Proportional to 19,156.50, 28,742.85 and 13,645.26

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Solution

The fourth proportional to 19,156.50, 28,742.85 and 13,645.26 is: 20,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.50 : 28,742.85 = 13,645.26 : x
  2. Step 2: Convert to fraction form
    19,156.50/28,742.85 = 13,645.26/x
  3. Step 3: Cross multiply
    19,156.50x = 28,742.85 × 13,645.26
  4. Step 4: Simplify right side
    19,156.50x = 392,203,661.39
  5. Step 5: Solve for x
    x = 392,203,661.39/19,156.50
  6. Step 6: Final answer
    x = 20,473.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.