Home / 30,299.10-41,814.48-18,203.28

Finding the Fourth Proportional to 30,299.10, 41,814.48 and 18,203.28

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Solution

The fourth proportional to 30,299.10, 41,814.48 and 18,203.28 is: 25,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,299.10 : 41,814.48 = 18,203.28 : x
  2. Step 2: Convert to fraction form
    30,299.10/41,814.48 = 18,203.28/x
  3. Step 3: Cross multiply
    30,299.10x = 41,814.48 × 18,203.28
  4. Step 4: Simplify right side
    30,299.10x = 761,160,687.49
  5. Step 5: Solve for x
    x = 761,160,687.49/30,299.10
  6. Step 6: Final answer
    x = 25,121.56

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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.