Home / 30,317.40-41,841.09-16,890.84

Finding the Fourth Proportional to 30,317.40, 41,841.09 and 16,890.84

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Solution

The fourth proportional to 30,317.40, 41,841.09 and 16,890.84 is: 23,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.40 : 41,841.09 = 16,890.84 : x
  2. Step 2: Convert to fraction form
    30,317.40/41,841.09 = 16,890.84/x
  3. Step 3: Cross multiply
    30,317.40x = 41,841.09 × 16,890.84
  4. Step 4: Simplify right side
    30,317.40x = 706,731,156.62
  5. Step 5: Solve for x
    x = 706,731,156.62/30,317.40
  6. Step 6: Final answer
    x = 23,311.07

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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.