Home / 31,724.16-43,779.32-18,295.22

Finding the Fourth Proportional to 31,724.16, 43,779.32 and 18,295.22

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Solution

The fourth proportional to 31,724.16, 43,779.32 and 18,295.22 is: 25,247.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,724.16 : 43,779.32 = 18,295.22 : x
  2. Step 2: Convert to fraction form
    31,724.16/43,779.32 = 18,295.22/x
  3. Step 3: Cross multiply
    31,724.16x = 43,779.32 × 18,295.22
  4. Step 4: Simplify right side
    31,724.16x = 800,952,290.85
  5. Step 5: Solve for x
    x = 800,952,290.85/31,724.16
  6. Step 6: Final answer
    x = 25,247.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.