Home / 28,781.24-39,708.96-16,203.56

Finding the Fourth Proportional to 28,781.24, 39,708.96 and 16,203.56

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Solution

The fourth proportional to 28,781.24, 39,708.96 and 16,203.56 is: 22,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.24 : 39,708.96 = 16,203.56 : x
  2. Step 2: Convert to fraction form
    28,781.24/39,708.96 = 16,203.56/x
  3. Step 3: Cross multiply
    28,781.24x = 39,708.96 × 16,203.56
  4. Step 4: Simplify right side
    28,781.24x = 643,426,317.35
  5. Step 5: Solve for x
    x = 643,426,317.35/28,781.24
  6. Step 6: Final answer
    x = 22,355.76

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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.