Home / 28,279.88-39,029.67-16,343.31

Finding the Fourth Proportional to 28,279.88, 39,029.67 and 16,343.31

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Solution

The fourth proportional to 28,279.88, 39,029.67 and 16,343.31 is: 22,555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.88 : 39,029.67 = 16,343.31 : x
  2. Step 2: Convert to fraction form
    28,279.88/39,029.67 = 16,343.31/x
  3. Step 3: Cross multiply
    28,279.88x = 39,029.67 × 16,343.31
  4. Step 4: Simplify right side
    28,279.88x = 637,873,996.01
  5. Step 5: Solve for x
    x = 637,873,996.01/28,279.88
  6. Step 6: Final answer
    x = 22,555.76

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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.