Home / 39,026.86-53,857.23-21,121.86

Finding the Fourth Proportional to 39,026.86, 53,857.23 and 21,121.86

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Solution

The fourth proportional to 39,026.86, 53,857.23 and 21,121.86 is: 29,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,026.86 : 53,857.23 = 21,121.86 : x
  2. Step 2: Convert to fraction form
    39,026.86/53,857.23 = 21,121.86/x
  3. Step 3: Cross multiply
    39,026.86x = 53,857.23 × 21,121.86
  4. Step 4: Simplify right side
    39,026.86x = 1,137,565,054.21
  5. Step 5: Solve for x
    x = 1,137,565,054.21/39,026.86
  6. Step 6: Final answer
    x = 29,148.26

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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.