Home / 21,622.74-29,836.73-12,668.19

Finding the Fourth Proportional to 21,622.74, 29,836.73 and 12,668.19

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Solution

The fourth proportional to 21,622.74, 29,836.73 and 12,668.19 is: 17,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.74 : 29,836.73 = 12,668.19 : x
  2. Step 2: Convert to fraction form
    21,622.74/29,836.73 = 12,668.19/x
  3. Step 3: Cross multiply
    21,622.74x = 29,836.73 × 12,668.19
  4. Step 4: Simplify right side
    21,622.74x = 377,977,364.62
  5. Step 5: Solve for x
    x = 377,977,364.62/21,622.74
  6. Step 6: Final answer
    x = 17,480.55

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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.