Home / 30,738.56-42,418.79-17,309.97

Finding the Fourth Proportional to 30,738.56, 42,418.79 and 17,309.97

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Solution

The fourth proportional to 30,738.56, 42,418.79 and 17,309.97 is: 23,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,738.56 : 42,418.79 = 17,309.97 : x
  2. Step 2: Convert to fraction form
    30,738.56/42,418.79 = 17,309.97/x
  3. Step 3: Cross multiply
    30,738.56x = 42,418.79 × 17,309.97
  4. Step 4: Simplify right side
    30,738.56x = 734,267,895.79
  5. Step 5: Solve for x
    x = 734,267,895.79/30,738.56
  6. Step 6: Final answer
    x = 23,887.52

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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.