Home / 30,201.90-45,216.45-18,537.90

Finding the Fourth Proportional to 30,201.90, 45,216.45 and 18,537.90

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Solution

The fourth proportional to 30,201.90, 45,216.45 and 18,537.90 is: 27,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.90 : 45,216.45 = 18,537.90 : x
  2. Step 2: Convert to fraction form
    30,201.90/45,216.45 = 18,537.90/x
  3. Step 3: Cross multiply
    30,201.90x = 45,216.45 × 18,537.90
  4. Step 4: Simplify right side
    30,201.90x = 838,218,028.46
  5. Step 5: Solve for x
    x = 838,218,028.46/30,201.90
  6. Step 6: Final answer
    x = 27,753.82

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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.