Home / 28,983.10-40,015.89-22,256.66

Finding the Fourth Proportional to 28,983.10, 40,015.89 and 22,256.66

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Solution

The fourth proportional to 28,983.10, 40,015.89 and 22,256.66 is: 30,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.10 : 40,015.89 = 22,256.66 : x
  2. Step 2: Convert to fraction form
    28,983.10/40,015.89 = 22,256.66/x
  3. Step 3: Cross multiply
    28,983.10x = 40,015.89 × 22,256.66
  4. Step 4: Simplify right side
    28,983.10x = 890,620,058.33
  5. Step 5: Solve for x
    x = 890,620,058.33/28,983.10
  6. Step 6: Final answer
    x = 30,728.94

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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.