Home / 30,207.85-41,672.37-21,260.32

Finding the Fourth Proportional to 30,207.85, 41,672.37 and 21,260.32

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Solution

The fourth proportional to 30,207.85, 41,672.37 and 21,260.32 is: 29,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.85 : 41,672.37 = 21,260.32 : x
  2. Step 2: Convert to fraction form
    30,207.85/41,672.37 = 21,260.32/x
  3. Step 3: Cross multiply
    30,207.85x = 41,672.37 × 21,260.32
  4. Step 4: Simplify right side
    30,207.85x = 885,967,896.90
  5. Step 5: Solve for x
    x = 885,967,896.90/30,207.85
  6. Step 6: Final answer
    x = 29,329.06

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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.