Home / 28,040.70-42,068.99-11,412.66

Finding the Fourth Proportional to 28,040.70, 42,068.99 and 11,412.66

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Solution

The fourth proportional to 28,040.70, 42,068.99 and 11,412.66 is: 17,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.70 : 42,068.99 = 11,412.66 : x
  2. Step 2: Convert to fraction form
    28,040.70/42,068.99 = 11,412.66/x
  3. Step 3: Cross multiply
    28,040.70x = 42,068.99 × 11,412.66
  4. Step 4: Simplify right side
    28,040.70x = 480,119,198.85
  5. Step 5: Solve for x
    x = 480,119,198.85/28,040.70
  6. Step 6: Final answer
    x = 17,122.23

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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.