Home / 21,267.20-31,905.64-6,477.27

Finding the Fourth Proportional to 21,267.20, 31,905.64 and 6,477.27

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Solution

The fourth proportional to 21,267.20, 31,905.64 and 6,477.27 is: 9,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.20 : 31,905.64 = 6,477.27 : x
  2. Step 2: Convert to fraction form
    21,267.20/31,905.64 = 6,477.27/x
  3. Step 3: Cross multiply
    21,267.20x = 31,905.64 × 6,477.27
  4. Step 4: Simplify right side
    21,267.20x = 206,661,444.80
  5. Step 5: Solve for x
    x = 206,661,444.80/21,267.20
  6. Step 6: Final answer
    x = 9,717.38

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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.