Home / 21,223.85-31,842.14-8,567.10

Finding the Fourth Proportional to 21,223.85, 31,842.14 and 8,567.10

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Solution

The fourth proportional to 21,223.85, 31,842.14 and 8,567.10 is: 12,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.85 : 31,842.14 = 8,567.10 : x
  2. Step 2: Convert to fraction form
    21,223.85/31,842.14 = 8,567.10/x
  3. Step 3: Cross multiply
    21,223.85x = 31,842.14 × 8,567.10
  4. Step 4: Simplify right side
    21,223.85x = 272,794,797.59
  5. Step 5: Solve for x
    x = 272,794,797.59/21,223.85
  6. Step 6: Final answer
    x = 12,853.22

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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.