Home / 28,226.86-38,953.89-16,290.86

Finding the Fourth Proportional to 28,226.86, 38,953.89 and 16,290.86

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Solution

The fourth proportional to 28,226.86, 38,953.89 and 16,290.86 is: 22,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.86 : 38,953.89 = 16,290.86 : x
  2. Step 2: Convert to fraction form
    28,226.86/38,953.89 = 16,290.86/x
  3. Step 3: Cross multiply
    28,226.86x = 38,953.89 × 16,290.86
  4. Step 4: Simplify right side
    28,226.86x = 634,592,173.68
  5. Step 5: Solve for x
    x = 634,592,173.68/28,226.86
  6. Step 6: Final answer
    x = 22,481.86

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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.