Home / 21,879.72-32,803.92-10,186.56

Finding the Fourth Proportional to 21,879.72, 32,803.92 and 10,186.56

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Solution

The fourth proportional to 21,879.72, 32,803.92 and 10,186.56 is: 15,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879.72 : 32,803.92 = 10,186.56 : x
  2. Step 2: Convert to fraction form
    21,879.72/32,803.92 = 10,186.56/x
  3. Step 3: Cross multiply
    21,879.72x = 32,803.92 × 10,186.56
  4. Step 4: Simplify right side
    21,879.72x = 334,159,099.32
  5. Step 5: Solve for x
    x = 334,159,099.32/21,879.72
  6. Step 6: Final answer
    x = 15,272.55

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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.