Home / 30,780.98-42,473.66-17,352.80

Finding the Fourth Proportional to 30,780.98, 42,473.66 and 17,352.80

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Solution

The fourth proportional to 30,780.98, 42,473.66 and 17,352.80 is: 23,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.98 : 42,473.66 = 17,352.80 : x
  2. Step 2: Convert to fraction form
    30,780.98/42,473.66 = 17,352.80/x
  3. Step 3: Cross multiply
    30,780.98x = 42,473.66 × 17,352.80
  4. Step 4: Simplify right side
    30,780.98x = 737,036,927.25
  5. Step 5: Solve for x
    x = 737,036,927.25/30,780.98
  6. Step 6: Final answer
    x = 23,944.56

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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.