Home / 30,949.67-42,710.62-16,802.21

Finding the Fourth Proportional to 30,949.67, 42,710.62 and 16,802.21

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Solution

The fourth proportional to 30,949.67, 42,710.62 and 16,802.21 is: 23,187.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.67 : 42,710.62 = 16,802.21 : x
  2. Step 2: Convert to fraction form
    30,949.67/42,710.62 = 16,802.21/x
  3. Step 3: Cross multiply
    30,949.67x = 42,710.62 × 16,802.21
  4. Step 4: Simplify right side
    30,949.67x = 717,632,806.47
  5. Step 5: Solve for x
    x = 717,632,806.47/30,949.67
  6. Step 6: Final answer
    x = 23,187.09

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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.