Home / 21,767.26-30,036.54-12,814.22

Finding the Fourth Proportional to 21,767.26, 30,036.54 and 12,814.22

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Solution

The fourth proportional to 21,767.26, 30,036.54 and 12,814.22 is: 17,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,767.26 : 30,036.54 = 12,814.22 : x
  2. Step 2: Convert to fraction form
    21,767.26/30,036.54 = 12,814.22/x
  3. Step 3: Cross multiply
    21,767.26x = 30,036.54 × 12,814.22
  4. Step 4: Simplify right side
    21,767.26x = 384,894,831.60
  5. Step 5: Solve for x
    x = 384,894,831.60/21,767.26
  6. Step 6: Final answer
    x = 17,682.28

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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.