Home / 30,320.90-41,842.23-16,892.12

Finding the Fourth Proportional to 30,320.90, 41,842.23 and 16,892.12

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Solution

The fourth proportional to 30,320.90, 41,842.23 and 16,892.12 is: 23,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.90 : 41,842.23 = 16,892.12 : x
  2. Step 2: Convert to fraction form
    30,320.90/41,842.23 = 16,892.12/x
  3. Step 3: Cross multiply
    30,320.90x = 41,842.23 × 16,892.12
  4. Step 4: Simplify right side
    30,320.90x = 706,803,970.23
  5. Step 5: Solve for x
    x = 706,803,970.23/30,320.90
  6. Step 6: Final answer
    x = 23,310.78

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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.