Home / 28,003.49-42,000.69-11,362.85

Finding the Fourth Proportional to 28,003.49, 42,000.69 and 11,362.85

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Solution

The fourth proportional to 28,003.49, 42,000.69 and 11,362.85 is: 17,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.49 : 42,000.69 = 11,362.85 : x
  2. Step 2: Convert to fraction form
    28,003.49/42,000.69 = 11,362.85/x
  3. Step 3: Cross multiply
    28,003.49x = 42,000.69 × 11,362.85
  4. Step 4: Simplify right side
    28,003.49x = 477,247,670.86
  5. Step 5: Solve for x
    x = 477,247,670.86/28,003.49
  6. Step 6: Final answer
    x = 17,042.43

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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.