Home / 30,427.80-45,641.70-17,305.80

Finding the Fourth Proportional to 30,427.80, 45,641.70 and 17,305.80

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Solution

The fourth proportional to 30,427.80, 45,641.70 and 17,305.80 is: 25,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.80 : 45,641.70 = 17,305.80 : x
  2. Step 2: Convert to fraction form
    30,427.80/45,641.70 = 17,305.80/x
  3. Step 3: Cross multiply
    30,427.80x = 45,641.70 × 17,305.80
  4. Step 4: Simplify right side
    30,427.80x = 789,866,131.86
  5. Step 5: Solve for x
    x = 789,866,131.86/30,427.80
  6. Step 6: Final answer
    x = 25,958.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.