Home / 35,765.79-53,647.85-12,391.95

Finding the Fourth Proportional to 35,765.79, 53,647.85 and 12,391.95

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Solution

The fourth proportional to 35,765.79, 53,647.85 and 12,391.95 is: 18,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,765.79 : 53,647.85 = 12,391.95 : x
  2. Step 2: Convert to fraction form
    35,765.79/53,647.85 = 12,391.95/x
  3. Step 3: Cross multiply
    35,765.79x = 53,647.85 × 12,391.95
  4. Step 4: Simplify right side
    35,765.79x = 664,801,412.85
  5. Step 5: Solve for x
    x = 664,801,412.85/35,765.79
  6. Step 6: Final answer
    x = 18,587.63

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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.