Home / 18,120.37-27,190.86-14,160.46

Finding the Fourth Proportional to 18,120.37, 27,190.86 and 14,160.46

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Solution

The fourth proportional to 18,120.37, 27,190.86 and 14,160.46 is: 21,248.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.37 : 27,190.86 = 14,160.46 : x
  2. Step 2: Convert to fraction form
    18,120.37/27,190.86 = 14,160.46/x
  3. Step 3: Cross multiply
    18,120.37x = 27,190.86 × 14,160.46
  4. Step 4: Simplify right side
    18,120.37x = 385,035,085.40
  5. Step 5: Solve for x
    x = 385,035,085.40/18,120.37
  6. Step 6: Final answer
    x = 21,248.74

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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.