Home / 31,986.64-44,140.91-18,559.20

Finding the Fourth Proportional to 31,986.64, 44,140.91 and 18,559.20

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Solution

The fourth proportional to 31,986.64, 44,140.91 and 18,559.20 is: 25,611.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986.64 : 44,140.91 = 18,559.20 : x
  2. Step 2: Convert to fraction form
    31,986.64/44,140.91 = 18,559.20/x
  3. Step 3: Cross multiply
    31,986.64x = 44,140.91 × 18,559.20
  4. Step 4: Simplify right side
    31,986.64x = 819,219,976.87
  5. Step 5: Solve for x
    x = 819,219,976.87/31,986.64
  6. Step 6: Final answer
    x = 25,611.32

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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.