Home / 31,072.16-46,618.08-19,991.36

Finding the Fourth Proportional to 31,072.16, 46,618.08 and 19,991.36

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Solution

The fourth proportional to 31,072.16, 46,618.08 and 19,991.36 is: 29,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,072.16 : 46,618.08 = 19,991.36 : x
  2. Step 2: Convert to fraction form
    31,072.16/46,618.08 = 19,991.36/x
  3. Step 3: Cross multiply
    31,072.16x = 46,618.08 × 19,991.36
  4. Step 4: Simplify right side
    31,072.16x = 931,958,819.79
  5. Step 5: Solve for x
    x = 931,958,819.79/31,072.16
  6. Step 6: Final answer
    x = 29,993.37

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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.