Home / 30,931.98-46,414.79-13,403.18

Finding the Fourth Proportional to 30,931.98, 46,414.79 and 13,403.18

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Solution

The fourth proportional to 30,931.98, 46,414.79 and 13,403.18 is: 20,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.98 : 46,414.79 = 13,403.18 : x
  2. Step 2: Convert to fraction form
    30,931.98/46,414.79 = 13,403.18/x
  3. Step 3: Cross multiply
    30,931.98x = 46,414.79 × 13,403.18
  4. Step 4: Simplify right side
    30,931.98x = 622,105,485.94
  5. Step 5: Solve for x
    x = 622,105,485.94/30,931.98
  6. Step 6: Final answer
    x = 20,112.05

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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.