Home / 27,990.23-42,002.53-11,120.29

Finding the Fourth Proportional to 27,990.23, 42,002.53 and 11,120.29

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Solution

The fourth proportional to 27,990.23, 42,002.53 and 11,120.29 is: 16,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.23 : 42,002.53 = 11,120.29 : x
  2. Step 2: Convert to fraction form
    27,990.23/42,002.53 = 11,120.29/x
  3. Step 3: Cross multiply
    27,990.23x = 42,002.53 × 11,120.29
  4. Step 4: Simplify right side
    27,990.23x = 467,080,181.53
  5. Step 5: Solve for x
    x = 467,080,181.53/27,990.23
  6. Step 6: Final answer
    x = 16,687.26

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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.