Home / 30,158.12-41,590.94-18,828.65

Finding the Fourth Proportional to 30,158.12, 41,590.94 and 18,828.65

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Solution

The fourth proportional to 30,158.12, 41,590.94 and 18,828.65 is: 25,966.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.12 : 41,590.94 = 18,828.65 : x
  2. Step 2: Convert to fraction form
    30,158.12/41,590.94 = 18,828.65/x
  3. Step 3: Cross multiply
    30,158.12x = 41,590.94 × 18,828.65
  4. Step 4: Simplify right side
    30,158.12x = 783,100,950.33
  5. Step 5: Solve for x
    x = 783,100,950.33/30,158.12
  6. Step 6: Final answer
    x = 25,966.51

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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.