Home / 31,235.63-43,091.96-19,140.83

Finding the Fourth Proportional to 31,235.63, 43,091.96 and 19,140.83

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Solution

The fourth proportional to 31,235.63, 43,091.96 and 19,140.83 is: 26,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,235.63 : 43,091.96 = 19,140.83 : x
  2. Step 2: Convert to fraction form
    31,235.63/43,091.96 = 19,140.83/x
  3. Step 3: Cross multiply
    31,235.63x = 43,091.96 × 19,140.83
  4. Step 4: Simplify right side
    31,235.63x = 824,815,569.56
  5. Step 5: Solve for x
    x = 824,815,569.56/31,235.63
  6. Step 6: Final answer
    x = 26,406.25

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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.