Home / 21,762.81-30,034.80-12,204.33

Finding the Fourth Proportional to 21,762.81, 30,034.80 and 12,204.33

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Solution

The fourth proportional to 21,762.81, 30,034.80 and 12,204.33 is: 16,843.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.81 : 30,034.80 = 12,204.33 : x
  2. Step 2: Convert to fraction form
    21,762.81/30,034.80 = 12,204.33/x
  3. Step 3: Cross multiply
    21,762.81x = 30,034.80 × 12,204.33
  4. Step 4: Simplify right side
    21,762.81x = 366,554,610.68
  5. Step 5: Solve for x
    x = 366,554,610.68/21,762.81
  6. Step 6: Final answer
    x = 16,843.17

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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.