Home / 30,943.51-42,702.23-16,796.45

Finding the Fourth Proportional to 30,943.51, 42,702.23 and 16,796.45

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Solution

The fourth proportional to 30,943.51, 42,702.23 and 16,796.45 is: 23,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.51 : 42,702.23 = 16,796.45 : x
  2. Step 2: Convert to fraction form
    30,943.51/42,702.23 = 16,796.45/x
  3. Step 3: Cross multiply
    30,943.51x = 42,702.23 × 16,796.45
  4. Step 4: Simplify right side
    30,943.51x = 717,245,787.10
  5. Step 5: Solve for x
    x = 717,245,787.10/30,943.51
  6. Step 6: Final answer
    x = 23,179.20

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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.