Home / 28,087.24-42,101.70-11,440.12

Finding the Fourth Proportional to 28,087.24, 42,101.70 and 11,440.12

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Solution

The fourth proportional to 28,087.24, 42,101.70 and 11,440.12 is: 17,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.24 : 42,101.70 = 11,440.12 : x
  2. Step 2: Convert to fraction form
    28,087.24/42,101.70 = 11,440.12/x
  3. Step 3: Cross multiply
    28,087.24x = 42,101.70 × 11,440.12
  4. Step 4: Simplify right side
    28,087.24x = 481,648,500.20
  5. Step 5: Solve for x
    x = 481,648,500.20/28,087.24
  6. Step 6: Final answer
    x = 17,148.30

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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.