Home / 31,420.92-46,941.36-20,236.44

Finding the Fourth Proportional to 31,420.92, 46,941.36 and 20,236.44

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Solution

The fourth proportional to 31,420.92, 46,941.36 and 20,236.44 is: 30,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.92 : 46,941.36 = 20,236.44 : x
  2. Step 2: Convert to fraction form
    31,420.92/46,941.36 = 20,236.44/x
  3. Step 3: Cross multiply
    31,420.92x = 46,941.36 × 20,236.44
  4. Step 4: Simplify right side
    31,420.92x = 949,926,015.16
  5. Step 5: Solve for x
    x = 949,926,015.16/31,420.92
  6. Step 6: Final answer
    x = 30,232.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.