Home / 18,939.08-28,364.88-18,283

Finding the Fourth Proportional to 18,939.08, 28,364.88 and 18,283

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Solution

The fourth proportional to 18,939.08, 28,364.88 and 18,283 is: 27,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.08 : 28,364.88 = 18,283 : x
  2. Step 2: Convert to fraction form
    18,939.08/28,364.88 = 18,283/x
  3. Step 3: Cross multiply
    18,939.08x = 28,364.88 × 18,283
  4. Step 4: Simplify right side
    18,939.08x = 518,595,101.04
  5. Step 5: Solve for x
    x = 518,595,101.04/18,939.08
  6. Step 6: Final answer
    x = 27,382.28

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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.