Home / 35,747.72-53,630.58-20,969

Finding the Fourth Proportional to 35,747.72, 53,630.58 and 20,969

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Solution

The fourth proportional to 35,747.72, 53,630.58 and 20,969 is: 31,458.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,747.72 : 53,630.58 = 20,969 : x
  2. Step 2: Convert to fraction form
    35,747.72/53,630.58 = 20,969/x
  3. Step 3: Cross multiply
    35,747.72x = 53,630.58 × 20,969
  4. Step 4: Simplify right side
    35,747.72x = 1,124,579,632.02
  5. Step 5: Solve for x
    x = 1,124,579,632.02/35,747.72
  6. Step 6: Final answer
    x = 31,458.78

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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.