Home / 21,427.07-29,567.72-11,994.35

Finding the Fourth Proportional to 21,427.07, 29,567.72 and 11,994.35

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Solution

The fourth proportional to 21,427.07, 29,567.72 and 11,994.35 is: 16,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.07 : 29,567.72 = 11,994.35 : x
  2. Step 2: Convert to fraction form
    21,427.07/29,567.72 = 11,994.35/x
  3. Step 3: Cross multiply
    21,427.07x = 29,567.72 × 11,994.35
  4. Step 4: Simplify right side
    21,427.07x = 354,645,522.41
  5. Step 5: Solve for x
    x = 354,645,522.41/21,427.07
  6. Step 6: Final answer
    x = 16,551.28

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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.