Home / 35,890.52-53,776.54-20,855.43

Finding the Fourth Proportional to 35,890.52, 53,776.54 and 20,855.43

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Solution

The fourth proportional to 35,890.52, 53,776.54 and 20,855.43 is: 31,248.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,890.52 : 53,776.54 = 20,855.43 : x
  2. Step 2: Convert to fraction form
    35,890.52/53,776.54 = 20,855.43/x
  3. Step 3: Cross multiply
    35,890.52x = 53,776.54 × 20,855.43
  4. Step 4: Simplify right side
    35,890.52x = 1,121,533,093.34
  5. Step 5: Solve for x
    x = 1,121,533,093.34/35,890.52
  6. Step 6: Final answer
    x = 31,248.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.