Home / 22,268.07-30,729.87-12,576.47

Finding the Fourth Proportional to 22,268.07, 30,729.87 and 12,576.47

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Solution

The fourth proportional to 22,268.07, 30,729.87 and 12,576.47 is: 17,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,268.07 : 30,729.87 = 12,576.47 : x
  2. Step 2: Convert to fraction form
    22,268.07/30,729.87 = 12,576.47/x
  3. Step 3: Cross multiply
    22,268.07x = 30,729.87 × 12,576.47
  4. Step 4: Simplify right side
    22,268.07x = 386,473,134.51
  5. Step 5: Solve for x
    x = 386,473,134.51/22,268.07
  6. Step 6: Final answer
    x = 17,355.48

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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.