Home / 21,629.08-29,847.48-12,069.22

Finding the Fourth Proportional to 21,629.08, 29,847.48 and 12,069.22

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Solution

The fourth proportional to 21,629.08, 29,847.48 and 12,069.22 is: 16,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.08 : 29,847.48 = 12,069.22 : x
  2. Step 2: Convert to fraction form
    21,629.08/29,847.48 = 12,069.22/x
  3. Step 3: Cross multiply
    21,629.08x = 29,847.48 × 12,069.22
  4. Step 4: Simplify right side
    21,629.08x = 360,235,802.57
  5. Step 5: Solve for x
    x = 360,235,802.57/21,629.08
  6. Step 6: Final answer
    x = 16,655.16

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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.