Home / 38,108.94-52,589.64-21,112.82

Finding the Fourth Proportional to 38,108.94, 52,589.64 and 21,112.82

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Solution

The fourth proportional to 38,108.94, 52,589.64 and 21,112.82 is: 29,135.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,108.94 : 52,589.64 = 21,112.82 : x
  2. Step 2: Convert to fraction form
    38,108.94/52,589.64 = 21,112.82/x
  3. Step 3: Cross multiply
    38,108.94x = 52,589.64 × 21,112.82
  4. Step 4: Simplify right side
    38,108.94x = 1,110,315,603.18
  5. Step 5: Solve for x
    x = 1,110,315,603.18/38,108.94
  6. Step 6: Final answer
    x = 29,135.31

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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.