Home / 38,803.55-53,553.34-21,577.64

Finding the Fourth Proportional to 38,803.55, 53,553.34 and 21,577.64

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Solution

The fourth proportional to 38,803.55, 53,553.34 and 21,577.64 is: 29,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,803.55 : 53,553.34 = 21,577.64 : x
  2. Step 2: Convert to fraction form
    38,803.55/53,553.34 = 21,577.64/x
  3. Step 3: Cross multiply
    38,803.55x = 53,553.34 × 21,577.64
  4. Step 4: Simplify right side
    38,803.55x = 1,155,554,557.43
  5. Step 5: Solve for x
    x = 1,155,554,557.43/38,803.55
  6. Step 6: Final answer
    x = 29,779.61

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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.