Home / 21,567.26-29,770.84-12,617.57

Finding the Fourth Proportional to 21,567.26, 29,770.84 and 12,617.57

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Solution

The fourth proportional to 21,567.26, 29,770.84 and 12,617.57 is: 17,416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.26 : 29,770.84 = 12,617.57 : x
  2. Step 2: Convert to fraction form
    21,567.26/29,770.84 = 12,617.57/x
  3. Step 3: Cross multiply
    21,567.26x = 29,770.84 × 12,617.57
  4. Step 4: Simplify right side
    21,567.26x = 375,635,747.86
  5. Step 5: Solve for x
    x = 375,635,747.86/21,567.26
  6. Step 6: Final answer
    x = 17,416.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.