Home / 21,425.40-29,566.98-11,994.03

Finding the Fourth Proportional to 21,425.40, 29,566.98 and 11,994.03

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Solution

The fourth proportional to 21,425.40, 29,566.98 and 11,994.03 is: 16,551.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.40 : 29,566.98 = 11,994.03 : x
  2. Step 2: Convert to fraction form
    21,425.40/29,566.98 = 11,994.03/x
  3. Step 3: Cross multiply
    21,425.40x = 29,566.98 × 11,994.03
  4. Step 4: Simplify right side
    21,425.40x = 354,627,245.13
  5. Step 5: Solve for x
    x = 354,627,245.13/21,425.40
  6. Step 6: Final answer
    x = 16,551.72

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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.