Home / 30,018.75-45,013.98-17,542.37

Finding the Fourth Proportional to 30,018.75, 45,013.98 and 17,542.37

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Solution

The fourth proportional to 30,018.75, 45,013.98 and 17,542.37 is: 26,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,018.75 : 45,013.98 = 17,542.37 : x
  2. Step 2: Convert to fraction form
    30,018.75/45,013.98 = 17,542.37/x
  3. Step 3: Cross multiply
    30,018.75x = 45,013.98 × 17,542.37
  4. Step 4: Simplify right side
    30,018.75x = 789,651,667.26
  5. Step 5: Solve for x
    x = 789,651,667.26/30,018.75
  6. Step 6: Final answer
    x = 26,305.28

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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.