Home / 21,071.96-29,075.92-12,119.84

Finding the Fourth Proportional to 21,071.96, 29,075.92 and 12,119.84

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Solution

The fourth proportional to 21,071.96, 29,075.92 and 12,119.84 is: 16,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071.96 : 29,075.92 = 12,119.84 : x
  2. Step 2: Convert to fraction form
    21,071.96/29,075.92 = 12,119.84/x
  3. Step 3: Cross multiply
    21,071.96x = 29,075.92 × 12,119.84
  4. Step 4: Simplify right side
    21,071.96x = 352,395,498.25
  5. Step 5: Solve for x
    x = 352,395,498.25/21,071.96
  6. Step 6: Final answer
    x = 16,723.43

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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.