Home / 21,054.12-31,582.02-8,573.94

Finding the Fourth Proportional to 21,054.12, 31,582.02 and 8,573.94

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Solution

The fourth proportional to 21,054.12, 31,582.02 and 8,573.94 is: 12,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.12 : 31,582.02 = 8,573.94 : x
  2. Step 2: Convert to fraction form
    21,054.12/31,582.02 = 8,573.94/x
  3. Step 3: Cross multiply
    21,054.12x = 31,582.02 × 8,573.94
  4. Step 4: Simplify right side
    21,054.12x = 270,782,344.56
  5. Step 5: Solve for x
    x = 270,782,344.56/21,054.12
  6. Step 6: Final answer
    x = 12,861.25

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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.