Home / 31,329.36-43,233.24-18,746.64

Finding the Fourth Proportional to 31,329.36, 43,233.24 and 18,746.64

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Solution

The fourth proportional to 31,329.36, 43,233.24 and 18,746.64 is: 25,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.36 : 43,233.24 = 18,746.64 : x
  2. Step 2: Convert to fraction form
    31,329.36/43,233.24 = 18,746.64/x
  3. Step 3: Cross multiply
    31,329.36x = 43,233.24 × 18,746.64
  4. Step 4: Simplify right side
    31,329.36x = 810,477,986.31
  5. Step 5: Solve for x
    x = 810,477,986.31/31,329.36
  6. Step 6: Final answer
    x = 25,869.60

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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.