Home / 38,539.56-53,183.47-21,543.84

Finding the Fourth Proportional to 38,539.56, 53,183.47 and 21,543.84

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Solution

The fourth proportional to 38,539.56, 53,183.47 and 21,543.84 is: 29,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,539.56 : 53,183.47 = 21,543.84 : x
  2. Step 2: Convert to fraction form
    38,539.56/53,183.47 = 21,543.84/x
  3. Step 3: Cross multiply
    38,539.56x = 53,183.47 × 21,543.84
  4. Step 4: Simplify right side
    38,539.56x = 1,145,776,168.32
  5. Step 5: Solve for x
    x = 1,145,776,168.32/38,539.56
  6. Step 6: Final answer
    x = 29,729.87

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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.