Home / 31,747.93-43,813.52-18,998.69

Finding the Fourth Proportional to 31,747.93, 43,813.52 and 18,998.69

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Solution

The fourth proportional to 31,747.93, 43,813.52 and 18,998.69 is: 26,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747.93 : 43,813.52 = 18,998.69 : x
  2. Step 2: Convert to fraction form
    31,747.93/43,813.52 = 18,998.69/x
  3. Step 3: Cross multiply
    31,747.93x = 43,813.52 × 18,998.69
  4. Step 4: Simplify right side
    31,747.93x = 832,399,312.72
  5. Step 5: Solve for x
    x = 832,399,312.72/31,747.93
  6. Step 6: Final answer
    x = 26,219.01

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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.