Home / 31,887.54-47,830.77-11,110.50

Finding the Fourth Proportional to 31,887.54, 47,830.77 and 11,110.50

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Solution

The fourth proportional to 31,887.54, 47,830.77 and 11,110.50 is: 16,665.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,887.54 : 47,830.77 = 11,110.50 : x
  2. Step 2: Convert to fraction form
    31,887.54/47,830.77 = 11,110.50/x
  3. Step 3: Cross multiply
    31,887.54x = 47,830.77 × 11,110.50
  4. Step 4: Simplify right side
    31,887.54x = 531,423,770.09
  5. Step 5: Solve for x
    x = 531,423,770.09/31,887.54
  6. Step 6: Final answer
    x = 16,665.56

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1.5x scale

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.