Home / 19,435.23-26,820.31-10,821.33

Finding the Fourth Proportional to 19,435.23, 26,820.31 and 10,821.33

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Solution

The fourth proportional to 19,435.23, 26,820.31 and 10,821.33 is: 14,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,435.23 : 26,820.31 = 10,821.33 : x
  2. Step 2: Convert to fraction form
    19,435.23/26,820.31 = 10,821.33/x
  3. Step 3: Cross multiply
    19,435.23x = 26,820.31 × 10,821.33
  4. Step 4: Simplify right side
    19,435.23x = 290,231,505.79
  5. Step 5: Solve for x
    x = 290,231,505.79/19,435.23
  6. Step 6: Final answer
    x = 14,933.27

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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.