Home / 30,228.30-41,708.61-18,289.26

Finding the Fourth Proportional to 30,228.30, 41,708.61 and 18,289.26

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Solution

The fourth proportional to 30,228.30, 41,708.61 and 18,289.26 is: 25,235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.30 : 41,708.61 = 18,289.26 : x
  2. Step 2: Convert to fraction form
    30,228.30/41,708.61 = 18,289.26/x
  3. Step 3: Cross multiply
    30,228.30x = 41,708.61 × 18,289.26
  4. Step 4: Simplify right side
    30,228.30x = 762,819,612.53
  5. Step 5: Solve for x
    x = 762,819,612.53/30,228.30
  6. Step 6: Final answer
    x = 25,235.28

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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.