Home / 21,220.37-31,835.47-6,226.88

Finding the Fourth Proportional to 21,220.37, 31,835.47 and 6,226.88

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Solution

The fourth proportional to 21,220.37, 31,835.47 and 6,226.88 is: 9,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220.37 : 31,835.47 = 6,226.88 : x
  2. Step 2: Convert to fraction form
    21,220.37/31,835.47 = 6,226.88/x
  3. Step 3: Cross multiply
    21,220.37x = 31,835.47 × 6,226.88
  4. Step 4: Simplify right side
    21,220.37x = 198,235,476.69
  5. Step 5: Solve for x
    x = 198,235,476.69/21,220.37
  6. Step 6: Final answer
    x = 9,341.76

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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.