Home / 30,069.12-41,495.28-16,821.12

Finding the Fourth Proportional to 30,069.12, 41,495.28 and 16,821.12

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Solution

The fourth proportional to 30,069.12, 41,495.28 and 16,821.12 is: 23,213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.12 : 41,495.28 = 16,821.12 : x
  2. Step 2: Convert to fraction form
    30,069.12/41,495.28 = 16,821.12/x
  3. Step 3: Cross multiply
    30,069.12x = 41,495.28 × 16,821.12
  4. Step 4: Simplify right side
    30,069.12x = 697,997,084.31
  5. Step 5: Solve for x
    x = 697,997,084.31/30,069.12
  6. Step 6: Final answer
    x = 23,213.09

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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.