Home / 31,663.50-43,699.77-18,235.32

Finding the Fourth Proportional to 31,663.50, 43,699.77 and 18,235.32

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Solution

The fourth proportional to 31,663.50, 43,699.77 and 18,235.32 is: 25,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,663.50 : 43,699.77 = 18,235.32 : x
  2. Step 2: Convert to fraction form
    31,663.50/43,699.77 = 18,235.32/x
  3. Step 3: Cross multiply
    31,663.50x = 43,699.77 × 18,235.32
  4. Step 4: Simplify right side
    31,663.50x = 796,879,289.88
  5. Step 5: Solve for x
    x = 796,879,289.88/31,663.50
  6. Step 6: Final answer
    x = 25,167.13

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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.