Home / 18,642.42-27,955.26-5,490.18

Finding the Fourth Proportional to 18,642.42, 27,955.26 and 5,490.18

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Solution

The fourth proportional to 18,642.42, 27,955.26 and 5,490.18 is: 8,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.42 : 27,955.26 = 5,490.18 : x
  2. Step 2: Convert to fraction form
    18,642.42/27,955.26 = 5,490.18/x
  3. Step 3: Cross multiply
    18,642.42x = 27,955.26 × 5,490.18
  4. Step 4: Simplify right side
    18,642.42x = 153,479,409.35
  5. Step 5: Solve for x
    x = 153,479,409.35/18,642.42
  6. Step 6: Final answer
    x = 8,232.81

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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.