Home / 30,936.12-46,411.38-13,407.72

Finding the Fourth Proportional to 30,936.12, 46,411.38 and 13,407.72

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Solution

The fourth proportional to 30,936.12, 46,411.38 and 13,407.72 is: 20,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.12 : 46,411.38 = 13,407.72 : x
  2. Step 2: Convert to fraction form
    30,936.12/46,411.38 = 13,407.72/x
  3. Step 3: Cross multiply
    30,936.12x = 46,411.38 × 13,407.72
  4. Step 4: Simplify right side
    30,936.12x = 622,270,787.85
  5. Step 5: Solve for x
    x = 622,270,787.85/30,936.12
  6. Step 6: Final answer
    x = 20,114.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.