Home / 21,231.54-29,232.60-19,263.24

Finding the Fourth Proportional to 21,231.54, 29,232.60 and 19,263.24

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Solution

The fourth proportional to 21,231.54, 29,232.60 and 19,263.24 is: 26,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.54 : 29,232.60 = 19,263.24 : x
  2. Step 2: Convert to fraction form
    21,231.54/29,232.60 = 19,263.24/x
  3. Step 3: Cross multiply
    21,231.54x = 29,232.60 × 19,263.24
  4. Step 4: Simplify right side
    21,231.54x = 563,114,589.62
  5. Step 5: Solve for x
    x = 563,114,589.62/21,231.54
  6. Step 6: Final answer
    x = 26,522.55

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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.