Home / 30,206.10-41,688.96-21,736.26

Finding the Fourth Proportional to 30,206.10, 41,688.96 and 21,736.26

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Solution

The fourth proportional to 30,206.10, 41,688.96 and 21,736.26 is: 29,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,206.10 : 41,688.96 = 21,736.26 : x
  2. Step 2: Convert to fraction form
    30,206.10/41,688.96 = 21,736.26/x
  3. Step 3: Cross multiply
    30,206.10x = 41,688.96 × 21,736.26
  4. Step 4: Simplify right side
    30,206.10x = 906,162,073.69
  5. Step 5: Solve for x
    x = 906,162,073.69/30,206.10
  6. Step 6: Final answer
    x = 29,999.31

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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.