Home / 21,416.34-29,554.61-11,984.18

Finding the Fourth Proportional to 21,416.34, 29,554.61 and 11,984.18

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Solution

The fourth proportional to 21,416.34, 29,554.61 and 11,984.18 is: 16,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.34 : 29,554.61 = 11,984.18 : x
  2. Step 2: Convert to fraction form
    21,416.34/29,554.61 = 11,984.18/x
  3. Step 3: Cross multiply
    21,416.34x = 29,554.61 × 11,984.18
  4. Step 4: Simplify right side
    21,416.34x = 354,187,766.07
  5. Step 5: Solve for x
    x = 354,187,766.07/21,416.34
  6. Step 6: Final answer
    x = 16,538.20

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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.