Home / 18,140.72-27,185.52-14,426.48

Finding the Fourth Proportional to 18,140.72, 27,185.52 and 14,426.48

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Solution

The fourth proportional to 18,140.72, 27,185.52 and 14,426.48 is: 21,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.72 : 27,185.52 = 14,426.48 : x
  2. Step 2: Convert to fraction form
    18,140.72/27,185.52 = 14,426.48/x
  3. Step 3: Cross multiply
    18,140.72x = 27,185.52 × 14,426.48
  4. Step 4: Simplify right side
    18,140.72x = 392,191,360.57
  5. Step 5: Solve for x
    x = 392,191,360.57/18,140.72
  6. Step 6: Final answer
    x = 21,619.39

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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.