Home / 18,798.37-28,031.60-18,629.65

Finding the Fourth Proportional to 18,798.37, 28,031.60 and 18,629.65

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Solution

The fourth proportional to 18,798.37, 28,031.60 and 18,629.65 is: 27,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.37 : 28,031.60 = 18,629.65 : x
  2. Step 2: Convert to fraction form
    18,798.37/28,031.60 = 18,629.65/x
  3. Step 3: Cross multiply
    18,798.37x = 28,031.60 × 18,629.65
  4. Step 4: Simplify right side
    18,798.37x = 522,218,896.94
  5. Step 5: Solve for x
    x = 522,218,896.94/18,798.37
  6. Step 6: Final answer
    x = 27,780.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.