Home / 30,943.95-42,702.62-16,796.79

Finding the Fourth Proportional to 30,943.95, 42,702.62 and 16,796.79

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Solution

The fourth proportional to 30,943.95, 42,702.62 and 16,796.79 is: 23,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.95 : 42,702.62 = 16,796.79 : x
  2. Step 2: Convert to fraction form
    30,943.95/42,702.62 = 16,796.79/x
  3. Step 3: Cross multiply
    30,943.95x = 42,702.62 × 16,796.79
  4. Step 4: Simplify right side
    30,943.95x = 717,266,856.61
  5. Step 5: Solve for x
    x = 717,266,856.61/30,943.95
  6. Step 6: Final answer
    x = 23,179.55

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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.