Home / 21,022.26-29,011.86-12,071.22

Finding the Fourth Proportional to 21,022.26, 29,011.86 and 12,071.22

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Solution

The fourth proportional to 21,022.26, 29,011.86 and 12,071.22 is: 16,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.26 : 29,011.86 = 12,071.22 : x
  2. Step 2: Convert to fraction form
    21,022.26/29,011.86 = 12,071.22/x
  3. Step 3: Cross multiply
    21,022.26x = 29,011.86 × 12,071.22
  4. Step 4: Simplify right side
    21,022.26x = 350,208,544.67
  5. Step 5: Solve for x
    x = 350,208,544.67/21,022.26
  6. Step 6: Final answer
    x = 16,658.94

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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.