Home / 21,083.03-31,630.01-11,214.19

Finding the Fourth Proportional to 21,083.03, 31,630.01 and 11,214.19

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Solution

The fourth proportional to 21,083.03, 31,630.01 and 11,214.19 is: 16,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.03 : 31,630.01 = 11,214.19 : x
  2. Step 2: Convert to fraction form
    21,083.03/31,630.01 = 11,214.19/x
  3. Step 3: Cross multiply
    21,083.03x = 31,630.01 × 11,214.19
  4. Step 4: Simplify right side
    21,083.03x = 354,704,941.84
  5. Step 5: Solve for x
    x = 354,704,941.84/21,083.03
  6. Step 6: Final answer
    x = 16,824.19

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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.