Home / 30,912.23-42,658.92-16,765.08

Finding the Fourth Proportional to 30,912.23, 42,658.92 and 16,765.08

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Solution

The fourth proportional to 30,912.23, 42,658.92 and 16,765.08 is: 23,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.23 : 42,658.92 = 16,765.08 : x
  2. Step 2: Convert to fraction form
    30,912.23/42,658.92 = 16,765.08/x
  3. Step 3: Cross multiply
    30,912.23x = 42,658.92 × 16,765.08
  4. Step 4: Simplify right side
    30,912.23x = 715,180,206.51
  5. Step 5: Solve for x
    x = 715,180,206.51/30,912.23
  6. Step 6: Final answer
    x = 23,135.84

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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.