Home / 18,923.37-28,335.83-10,115.23

Finding the Fourth Proportional to 18,923.37, 28,335.83 and 10,115.23

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Solution

The fourth proportional to 18,923.37, 28,335.83 and 10,115.23 is: 15,146.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.37 : 28,335.83 = 10,115.23 : x
  2. Step 2: Convert to fraction form
    18,923.37/28,335.83 = 10,115.23/x
  3. Step 3: Cross multiply
    18,923.37x = 28,335.83 × 10,115.23
  4. Step 4: Simplify right side
    18,923.37x = 286,623,369.40
  5. Step 5: Solve for x
    x = 286,623,369.40/18,923.37
  6. Step 6: Final answer
    x = 15,146.53

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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.