Home / 21,062.42-31,566.22-8,567.88

Finding the Fourth Proportional to 21,062.42, 31,566.22 and 8,567.88

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Solution

The fourth proportional to 21,062.42, 31,566.22 and 8,567.88 is: 12,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.42 : 31,566.22 = 8,567.88 : x
  2. Step 2: Convert to fraction form
    21,062.42/31,566.22 = 8,567.88/x
  3. Step 3: Cross multiply
    21,062.42x = 31,566.22 × 8,567.88
  4. Step 4: Simplify right side
    21,062.42x = 270,455,585.01
  5. Step 5: Solve for x
    x = 270,455,585.01/21,062.42
  6. Step 6: Final answer
    x = 12,840.67

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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.