Home / 31,745.94-43,807.68-18,316.41

Finding the Fourth Proportional to 31,745.94, 43,807.68 and 18,316.41

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Solution

The fourth proportional to 31,745.94, 43,807.68 and 18,316.41 is: 25,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,745.94 : 43,807.68 = 18,316.41 : x
  2. Step 2: Convert to fraction form
    31,745.94/43,807.68 = 18,316.41/x
  3. Step 3: Cross multiply
    31,745.94x = 43,807.68 × 18,316.41
  4. Step 4: Simplify right side
    31,745.94x = 802,399,428.03
  5. Step 5: Solve for x
    x = 802,399,428.03/31,745.94
  6. Step 6: Final answer
    x = 25,275.66

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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.