Home / 39,181.24-54,070.30-21,276.24

Finding the Fourth Proportional to 39,181.24, 54,070.30 and 21,276.24

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Solution

The fourth proportional to 39,181.24, 54,070.30 and 21,276.24 is: 29,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.24 : 54,070.30 = 21,276.24 : x
  2. Step 2: Convert to fraction form
    39,181.24/54,070.30 = 21,276.24/x
  3. Step 3: Cross multiply
    39,181.24x = 54,070.30 × 21,276.24
  4. Step 4: Simplify right side
    39,181.24x = 1,150,412,503.50
  5. Step 5: Solve for x
    x = 1,150,412,503.50/39,181.24
  6. Step 6: Final answer
    x = 29,361.31

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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.