Home / 30,919.73-42,669.01-16,772.59

Finding the Fourth Proportional to 30,919.73, 42,669.01 and 16,772.59

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Solution

The fourth proportional to 30,919.73, 42,669.01 and 16,772.59 is: 23,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919.73 : 42,669.01 = 16,772.59 : x
  2. Step 2: Convert to fraction form
    30,919.73/42,669.01 = 16,772.59/x
  3. Step 3: Cross multiply
    30,919.73x = 42,669.01 × 16,772.59
  4. Step 4: Simplify right side
    30,919.73x = 715,669,810.44
  5. Step 5: Solve for x
    x = 715,669,810.44/30,919.73
  6. Step 6: Final answer
    x = 23,146.06

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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.