Home / 30,162.79-41,624.60-18,223.91

Finding the Fourth Proportional to 30,162.79, 41,624.60 and 18,223.91

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Solution

The fourth proportional to 30,162.79, 41,624.60 and 18,223.91 is: 25,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162.79 : 41,624.60 = 18,223.91 : x
  2. Step 2: Convert to fraction form
    30,162.79/41,624.60 = 18,223.91/x
  3. Step 3: Cross multiply
    30,162.79x = 41,624.60 × 18,223.91
  4. Step 4: Simplify right side
    30,162.79x = 758,562,964.19
  5. Step 5: Solve for x
    x = 758,562,964.19/30,162.79
  6. Step 6: Final answer
    x = 25,148.97

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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.