Home / 30,960.61-42,726.15-16,813.44

Finding the Fourth Proportional to 30,960.61, 42,726.15 and 16,813.44

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Solution

The fourth proportional to 30,960.61, 42,726.15 and 16,813.44 is: 23,202.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.61 : 42,726.15 = 16,813.44 : x
  2. Step 2: Convert to fraction form
    30,960.61/42,726.15 = 16,813.44/x
  3. Step 3: Cross multiply
    30,960.61x = 42,726.15 × 16,813.44
  4. Step 4: Simplify right side
    30,960.61x = 718,373,559.46
  5. Step 5: Solve for x
    x = 718,373,559.46/30,960.61
  6. Step 6: Final answer
    x = 23,202.83

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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.