Home / 28,043.55-38,708.69-16,721.37

Finding the Fourth Proportional to 28,043.55, 38,708.69 and 16,721.37

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Solution

The fourth proportional to 28,043.55, 38,708.69 and 16,721.37 is: 23,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.55 : 38,708.69 = 16,721.37 : x
  2. Step 2: Convert to fraction form
    28,043.55/38,708.69 = 16,721.37/x
  3. Step 3: Cross multiply
    28,043.55x = 38,708.69 × 16,721.37
  4. Step 4: Simplify right side
    28,043.55x = 647,262,244.10
  5. Step 5: Solve for x
    x = 647,262,244.10/28,043.55
  6. Step 6: Final answer
    x = 23,080.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.