Home / 21,610.63-29,821.64-12,051.55

Finding the Fourth Proportional to 21,610.63, 29,821.64 and 12,051.55

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Solution

The fourth proportional to 21,610.63, 29,821.64 and 12,051.55 is: 16,630.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.63 : 29,821.64 = 12,051.55 : x
  2. Step 2: Convert to fraction form
    21,610.63/29,821.64 = 12,051.55/x
  3. Step 3: Cross multiply
    21,610.63x = 29,821.64 × 12,051.55
  4. Step 4: Simplify right side
    21,610.63x = 359,396,962.56
  5. Step 5: Solve for x
    x = 359,396,962.56/21,610.63
  6. Step 6: Final answer
    x = 16,630.56

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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.