Home / 22,268.34-30,729.69-12,708.05

Finding the Fourth Proportional to 22,268.34, 30,729.69 and 12,708.05

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Solution

The fourth proportional to 22,268.34, 30,729.69 and 12,708.05 is: 17,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,268.34 : 30,729.69 = 12,708.05 : x
  2. Step 2: Convert to fraction form
    22,268.34/30,729.69 = 12,708.05/x
  3. Step 3: Cross multiply
    22,268.34x = 30,729.69 × 12,708.05
  4. Step 4: Simplify right side
    22,268.34x = 390,514,283.36
  5. Step 5: Solve for x
    x = 390,514,283.36/22,268.34
  6. Step 6: Final answer
    x = 17,536.75

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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.