Home / 21,119.19-31,684.77-10,576.49

Finding the Fourth Proportional to 21,119.19, 31,684.77 and 10,576.49

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Solution

The fourth proportional to 21,119.19, 31,684.77 and 10,576.49 is: 15,867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,119.19 : 31,684.77 = 10,576.49 : x
  2. Step 2: Convert to fraction form
    21,119.19/31,684.77 = 10,576.49/x
  3. Step 3: Cross multiply
    21,119.19x = 31,684.77 × 10,576.49
  4. Step 4: Simplify right side
    21,119.19x = 335,113,653.06
  5. Step 5: Solve for x
    x = 335,113,653.06/21,119.19
  6. Step 6: Final answer
    x = 15,867.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.