Home / 21,504.36-29,670.80-12,546.74

Finding the Fourth Proportional to 21,504.36, 29,670.80 and 12,546.74

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Solution

The fourth proportional to 21,504.36, 29,670.80 and 12,546.74 is: 17,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.36 : 29,670.80 = 12,546.74 : x
  2. Step 2: Convert to fraction form
    21,504.36/29,670.80 = 12,546.74/x
  3. Step 3: Cross multiply
    21,504.36x = 29,670.80 × 12,546.74
  4. Step 4: Simplify right side
    21,504.36x = 372,271,813.19
  5. Step 5: Solve for x
    x = 372,271,813.19/21,504.36
  6. Step 6: Final answer
    x = 17,311.46

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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.