Home / 21,893.06-30,208.46-12,331.46

Finding the Fourth Proportional to 21,893.06, 30,208.46 and 12,331.46

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Solution

The fourth proportional to 21,893.06, 30,208.46 and 12,331.46 is: 17,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.06 : 30,208.46 = 12,331.46 : x
  2. Step 2: Convert to fraction form
    21,893.06/30,208.46 = 12,331.46/x
  3. Step 3: Cross multiply
    21,893.06x = 30,208.46 × 12,331.46
  4. Step 4: Simplify right side
    21,893.06x = 372,514,416.15
  5. Step 5: Solve for x
    x = 372,514,416.15/21,893.06
  6. Step 6: Final answer
    x = 17,015.18

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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.