Home / 30,372.18-41,901-20,167.98

Finding the Fourth Proportional to 30,372.18, 41,901 and 20,167.98

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Solution

The fourth proportional to 30,372.18, 41,901 and 20,167.98 is: 27,823.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.18 : 41,901 = 20,167.98 : x
  2. Step 2: Convert to fraction form
    30,372.18/41,901 = 20,167.98/x
  3. Step 3: Cross multiply
    30,372.18x = 41,901 × 20,167.98
  4. Step 4: Simplify right side
    30,372.18x = 845,058,529.98
  5. Step 5: Solve for x
    x = 845,058,529.98/30,372.18
  6. Step 6: Final answer
    x = 27,823.44

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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.