Home / 30,702.75-42,369.80-17,454.75

Finding the Fourth Proportional to 30,702.75, 42,369.80 and 17,454.75

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Solution

The fourth proportional to 30,702.75, 42,369.80 and 17,454.75 is: 24,087.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702.75 : 42,369.80 = 17,454.75 : x
  2. Step 2: Convert to fraction form
    30,702.75/42,369.80 = 17,454.75/x
  3. Step 3: Cross multiply
    30,702.75x = 42,369.80 × 17,454.75
  4. Step 4: Simplify right side
    30,702.75x = 739,554,179.28
  5. Step 5: Solve for x
    x = 739,554,179.28/30,702.75
  6. Step 6: Final answer
    x = 24,087.56

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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.