Home / 31,779.18-43,857.99-19,201.50

Finding the Fourth Proportional to 31,779.18, 43,857.99 and 19,201.50

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Solution

The fourth proportional to 31,779.18, 43,857.99 and 19,201.50 is: 26,499.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.18 : 43,857.99 = 19,201.50 : x
  2. Step 2: Convert to fraction form
    31,779.18/43,857.99 = 19,201.50/x
  3. Step 3: Cross multiply
    31,779.18x = 43,857.99 × 19,201.50
  4. Step 4: Simplify right side
    31,779.18x = 842,139,194.99
  5. Step 5: Solve for x
    x = 842,139,194.99/31,779.18
  6. Step 6: Final answer
    x = 26,499.71

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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.