Home / 20,941.47-31,400.06-8,451.27

Finding the Fourth Proportional to 20,941.47, 31,400.06 and 8,451.27

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Solution

The fourth proportional to 20,941.47, 31,400.06 and 8,451.27 is: 12,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.47 : 31,400.06 = 8,451.27 : x
  2. Step 2: Convert to fraction form
    20,941.47/31,400.06 = 8,451.27/x
  3. Step 3: Cross multiply
    20,941.47x = 31,400.06 × 8,451.27
  4. Step 4: Simplify right side
    20,941.47x = 265,370,342.82
  5. Step 5: Solve for x
    x = 265,370,342.82/20,941.47
  6. Step 6: Final answer
    x = 12,672.00

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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.