Home / 31,986.32-44,138.28-19,410.32

Finding the Fourth Proportional to 31,986.32, 44,138.28 and 19,410.32

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Solution

The fourth proportional to 31,986.32, 44,138.28 and 19,410.32 is: 26,784.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986.32 : 44,138.28 = 19,410.32 : x
  2. Step 2: Convert to fraction form
    31,986.32/44,138.28 = 19,410.32/x
  3. Step 3: Cross multiply
    31,986.32x = 44,138.28 × 19,410.32
  4. Step 4: Simplify right side
    31,986.32x = 856,738,139.05
  5. Step 5: Solve for x
    x = 856,738,139.05/31,986.32
  6. Step 6: Final answer
    x = 26,784.52

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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.