Home / 21,012.77-31,523.77-6,222.85

Finding the Fourth Proportional to 21,012.77, 31,523.77 and 6,222.85

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Solution

The fourth proportional to 21,012.77, 31,523.77 and 6,222.85 is: 9,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012.77 : 31,523.77 = 6,222.85 : x
  2. Step 2: Convert to fraction form
    21,012.77/31,523.77 = 6,222.85/x
  3. Step 3: Cross multiply
    21,012.77x = 31,523.77 × 6,222.85
  4. Step 4: Simplify right side
    21,012.77x = 196,167,621.11
  5. Step 5: Solve for x
    x = 196,167,621.11/21,012.77
  6. Step 6: Final answer
    x = 9,335.64

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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.