Home / 21,797.03-30,072.17-14,247.72

Finding the Fourth Proportional to 21,797.03, 30,072.17 and 14,247.72

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Solution

The fourth proportional to 21,797.03, 30,072.17 and 14,247.72 is: 19,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.03 : 30,072.17 = 14,247.72 : x
  2. Step 2: Convert to fraction form
    21,797.03/30,072.17 = 14,247.72/x
  3. Step 3: Cross multiply
    21,797.03x = 30,072.17 × 14,247.72
  4. Step 4: Simplify right side
    21,797.03x = 428,459,893.57
  5. Step 5: Solve for x
    x = 428,459,893.57/21,797.03
  6. Step 6: Final answer
    x = 19,656.80

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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.