Home / 21,668.25-29,833.18-19,113.81

Finding the Fourth Proportional to 21,668.25, 29,833.18 and 19,113.81

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Solution

The fourth proportional to 21,668.25, 29,833.18 and 19,113.81 is: 26,316.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668.25 : 29,833.18 = 19,113.81 : x
  2. Step 2: Convert to fraction form
    21,668.25/29,833.18 = 19,113.81/x
  3. Step 3: Cross multiply
    21,668.25x = 29,833.18 × 19,113.81
  4. Step 4: Simplify right side
    21,668.25x = 570,225,765.98
  5. Step 5: Solve for x
    x = 570,225,765.98/21,668.25
  6. Step 6: Final answer
    x = 26,316.19

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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.