Home / 30,230.90-41,721.23-16,804.75

Finding the Fourth Proportional to 30,230.90, 41,721.23 and 16,804.75

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Solution

The fourth proportional to 30,230.90, 41,721.23 and 16,804.75 is: 23,191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.90 : 41,721.23 = 16,804.75 : x
  2. Step 2: Convert to fraction form
    30,230.90/41,721.23 = 16,804.75/x
  3. Step 3: Cross multiply
    30,230.90x = 41,721.23 × 16,804.75
  4. Step 4: Simplify right side
    30,230.90x = 701,114,700.29
  5. Step 5: Solve for x
    x = 701,114,700.29/30,230.90
  6. Step 6: Final answer
    x = 23,191.99

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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.