Home / 31,111.23-46,551.99-18,640.05

Finding the Fourth Proportional to 31,111.23, 46,551.99 and 18,640.05

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Solution

The fourth proportional to 31,111.23, 46,551.99 and 18,640.05 is: 27,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,111.23 : 46,551.99 = 18,640.05 : x
  2. Step 2: Convert to fraction form
    31,111.23/46,551.99 = 18,640.05/x
  3. Step 3: Cross multiply
    31,111.23x = 46,551.99 × 18,640.05
  4. Step 4: Simplify right side
    31,111.23x = 867,731,421.20
  5. Step 5: Solve for x
    x = 867,731,421.20/31,111.23
  6. Step 6: Final answer
    x = 27,891.26

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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.