Home / 21,151.04-29,194.44-12,768.08

Finding the Fourth Proportional to 21,151.04, 29,194.44 and 12,768.08

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Solution

The fourth proportional to 21,151.04, 29,194.44 and 12,768.08 is: 17,623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151.04 : 29,194.44 = 12,768.08 : x
  2. Step 2: Convert to fraction form
    21,151.04/29,194.44 = 12,768.08/x
  3. Step 3: Cross multiply
    21,151.04x = 29,194.44 × 12,768.08
  4. Step 4: Simplify right side
    21,151.04x = 372,756,945.48
  5. Step 5: Solve for x
    x = 372,756,945.48/21,151.04
  6. Step 6: Final answer
    x = 17,623.58

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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.