Home / 38,528.12-53,166.12-21,757.88

Finding the Fourth Proportional to 38,528.12, 53,166.12 and 21,757.88

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Solution

The fourth proportional to 38,528.12, 53,166.12 and 21,757.88 is: 30,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,528.12 : 53,166.12 = 21,757.88 : x
  2. Step 2: Convert to fraction form
    38,528.12/53,166.12 = 21,757.88/x
  3. Step 3: Cross multiply
    38,528.12x = 53,166.12 × 21,757.88
  4. Step 4: Simplify right side
    38,528.12x = 1,156,782,059.03
  5. Step 5: Solve for x
    x = 1,156,782,059.03/38,528.12
  6. Step 6: Final answer
    x = 30,024.36

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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.