Home / 21,263.34-31,885.80-6,468.83

Finding the Fourth Proportional to 21,263.34, 31,885.80 and 6,468.83

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Solution

The fourth proportional to 21,263.34, 31,885.80 and 6,468.83 is: 9,700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263.34 : 31,885.80 = 6,468.83 : x
  2. Step 2: Convert to fraction form
    21,263.34/31,885.80 = 6,468.83/x
  3. Step 3: Cross multiply
    21,263.34x = 31,885.80 × 6,468.83
  4. Step 4: Simplify right side
    21,263.34x = 206,263,791.89
  5. Step 5: Solve for x
    x = 206,263,791.89/21,263.34
  6. Step 6: Final answer
    x = 9,700.44

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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.