Home / 21,611.26-32,416.56-13,180.24

Finding the Fourth Proportional to 21,611.26, 32,416.56 and 13,180.24

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Solution

The fourth proportional to 21,611.26, 32,416.56 and 13,180.24 is: 19,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.26 : 32,416.56 = 13,180.24 : x
  2. Step 2: Convert to fraction form
    21,611.26/32,416.56 = 13,180.24/x
  3. Step 3: Cross multiply
    21,611.26x = 32,416.56 × 13,180.24
  4. Step 4: Simplify right side
    21,611.26x = 427,258,040.77
  5. Step 5: Solve for x
    x = 427,258,040.77/21,611.26
  6. Step 6: Final answer
    x = 19,770.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.