Home / 31,157.44-43,012.70-19,227.36

Finding the Fourth Proportional to 31,157.44, 43,012.70 and 19,227.36

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Solution

The fourth proportional to 31,157.44, 43,012.70 and 19,227.36 is: 26,543.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.44 : 43,012.70 = 19,227.36 : x
  2. Step 2: Convert to fraction form
    31,157.44/43,012.70 = 19,227.36/x
  3. Step 3: Cross multiply
    31,157.44x = 43,012.70 × 19,227.36
  4. Step 4: Simplify right side
    31,157.44x = 827,020,667.47
  5. Step 5: Solve for x
    x = 827,020,667.47/31,157.44
  6. Step 6: Final answer
    x = 26,543.28

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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.