Home / 30,958.02-42,721.70-16,810.97

Finding the Fourth Proportional to 30,958.02, 42,721.70 and 16,810.97

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Solution

The fourth proportional to 30,958.02, 42,721.70 and 16,810.97 is: 23,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,958.02 : 42,721.70 = 16,810.97 : x
  2. Step 2: Convert to fraction form
    30,958.02/42,721.70 = 16,810.97/x
  3. Step 3: Cross multiply
    30,958.02x = 42,721.70 × 16,810.97
  4. Step 4: Simplify right side
    30,958.02x = 718,192,919.39
  5. Step 5: Solve for x
    x = 718,192,919.39/30,958.02
  6. Step 6: Final answer
    x = 23,198.93

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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.