Home / 21,416.04-29,554.07-11,984.58

Finding the Fourth Proportional to 21,416.04, 29,554.07 and 11,984.58

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Solution

The fourth proportional to 21,416.04, 29,554.07 and 11,984.58 is: 16,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,416.04 : 29,554.07 = 11,984.58 : x
  2. Step 2: Convert to fraction form
    21,416.04/29,554.07 = 11,984.58/x
  3. Step 3: Cross multiply
    21,416.04x = 29,554.07 × 11,984.58
  4. Step 4: Simplify right side
    21,416.04x = 354,193,056.32
  5. Step 5: Solve for x
    x = 354,193,056.32/21,416.04
  6. Step 6: Final answer
    x = 16,538.68

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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.