Home / 21,622.76-29,842.30-12,673.80

Finding the Fourth Proportional to 21,622.76, 29,842.30 and 12,673.80

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Solution

The fourth proportional to 21,622.76, 29,842.30 and 12,673.80 is: 17,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.76 : 29,842.30 = 12,673.80 : x
  2. Step 2: Convert to fraction form
    21,622.76/29,842.30 = 12,673.80/x
  3. Step 3: Cross multiply
    21,622.76x = 29,842.30 × 12,673.80
  4. Step 4: Simplify right side
    21,622.76x = 378,215,341.74
  5. Step 5: Solve for x
    x = 378,215,341.74/21,622.76
  6. Step 6: Final answer
    x = 17,491.54

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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.