Home / 38,526.12-53,163.36-21,755.88

Finding the Fourth Proportional to 38,526.12, 53,163.36 and 21,755.88

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Solution

The fourth proportional to 38,526.12, 53,163.36 and 21,755.88 is: 30,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,526.12 : 53,163.36 = 21,755.88 : x
  2. Step 2: Convert to fraction form
    38,526.12/53,163.36 = 21,755.88/x
  3. Step 3: Cross multiply
    38,526.12x = 53,163.36 × 21,755.88
  4. Step 4: Simplify right side
    38,526.12x = 1,156,615,680.56
  5. Step 5: Solve for x
    x = 1,156,615,680.56/38,526.12
  6. Step 6: Final answer
    x = 30,021.60

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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.