Home / 28,853.67-43,285.28-10,128.84

Finding the Fourth Proportional to 28,853.67, 43,285.28 and 10,128.84

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Solution

The fourth proportional to 28,853.67, 43,285.28 and 10,128.84 is: 15,194.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.67 : 43,285.28 = 10,128.84 : x
  2. Step 2: Convert to fraction form
    28,853.67/43,285.28 = 10,128.84/x
  3. Step 3: Cross multiply
    28,853.67x = 43,285.28 × 10,128.84
  4. Step 4: Simplify right side
    28,853.67x = 438,429,863.12
  5. Step 5: Solve for x
    x = 438,429,863.12/28,853.67
  6. Step 6: Final answer
    x = 15,194.94

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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.