Home / 30,920.23-42,669.70-16,773.09

Finding the Fourth Proportional to 30,920.23, 42,669.70 and 16,773.09

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Solution

The fourth proportional to 30,920.23, 42,669.70 and 16,773.09 is: 23,146.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.23 : 42,669.70 = 16,773.09 : x
  2. Step 2: Convert to fraction form
    30,920.23/42,669.70 = 16,773.09/x
  3. Step 3: Cross multiply
    30,920.23x = 42,669.70 × 16,773.09
  4. Step 4: Simplify right side
    30,920.23x = 715,702,718.37
  5. Step 5: Solve for x
    x = 715,702,718.37/30,920.23
  6. Step 6: Final answer
    x = 23,146.75

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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.