Home / 21,182.04-29,233.71-11,751.21

Finding the Fourth Proportional to 21,182.04, 29,233.71 and 11,751.21

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Solution

The fourth proportional to 21,182.04, 29,233.71 and 11,751.21 is: 16,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.04 : 29,233.71 = 11,751.21 : x
  2. Step 2: Convert to fraction form
    21,182.04/29,233.71 = 11,751.21/x
  3. Step 3: Cross multiply
    21,182.04x = 29,233.71 × 11,751.21
  4. Step 4: Simplify right side
    21,182.04x = 343,531,465.29
  5. Step 5: Solve for x
    x = 343,531,465.29/21,182.04
  6. Step 6: Final answer
    x = 16,218.05

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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.