Home / 30,166.30-45,267.09-12,634.66

Finding the Fourth Proportional to 30,166.30, 45,267.09 and 12,634.66

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Solution

The fourth proportional to 30,166.30, 45,267.09 and 12,634.66 is: 18,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,166.30 : 45,267.09 = 12,634.66 : x
  2. Step 2: Convert to fraction form
    30,166.30/45,267.09 = 12,634.66/x
  3. Step 3: Cross multiply
    30,166.30x = 45,267.09 × 12,634.66
  4. Step 4: Simplify right side
    30,166.30x = 571,934,291.34
  5. Step 5: Solve for x
    x = 571,934,291.34/30,166.30
  6. Step 6: Final answer
    x = 18,959.38

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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.