Home / 22,211.03-30,650.36-12,139.83

Finding the Fourth Proportional to 22,211.03, 30,650.36 and 12,139.83

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Solution

The fourth proportional to 22,211.03, 30,650.36 and 12,139.83 is: 16,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.03 : 30,650.36 = 12,139.83 : x
  2. Step 2: Convert to fraction form
    22,211.03/30,650.36 = 12,139.83/x
  3. Step 3: Cross multiply
    22,211.03x = 30,650.36 × 12,139.83
  4. Step 4: Simplify right side
    22,211.03x = 372,090,159.84
  5. Step 5: Solve for x
    x = 372,090,159.84/22,211.03
  6. Step 6: Final answer
    x = 16,752.49

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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.