Home / 21,039.18-29,034.03-12,087.33

Finding the Fourth Proportional to 21,039.18, 29,034.03 and 12,087.33

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Solution

The fourth proportional to 21,039.18, 29,034.03 and 12,087.33 is: 16,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.18 : 29,034.03 = 12,087.33 : x
  2. Step 2: Convert to fraction form
    21,039.18/29,034.03 = 12,087.33/x
  3. Step 3: Cross multiply
    21,039.18x = 29,034.03 × 12,087.33
  4. Step 4: Simplify right side
    21,039.18x = 350,943,901.84
  5. Step 5: Solve for x
    x = 350,943,901.84/21,039.18
  6. Step 6: Final answer
    x = 16,680.49

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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.