Home / 27,653.40-38,177.46-18,238.32

Finding the Fourth Proportional to 27,653.40, 38,177.46 and 18,238.32

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Solution

The fourth proportional to 27,653.40, 38,177.46 and 18,238.32 is: 25,179.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,653.40 : 38,177.46 = 18,238.32 : x
  2. Step 2: Convert to fraction form
    27,653.40/38,177.46 = 18,238.32/x
  3. Step 3: Cross multiply
    27,653.40x = 38,177.46 × 18,238.32
  4. Step 4: Simplify right side
    27,653.40x = 696,292,732.27
  5. Step 5: Solve for x
    x = 696,292,732.27/27,653.40
  6. Step 6: Final answer
    x = 25,179.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.