Home / 21,611.76-32,417.32-13,180.74

Finding the Fourth Proportional to 21,611.76, 32,417.32 and 13,180.74

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Solution

The fourth proportional to 21,611.76, 32,417.32 and 13,180.74 is: 19,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.76 : 32,417.32 = 13,180.74 : x
  2. Step 2: Convert to fraction form
    21,611.76/32,417.32 = 13,180.74/x
  3. Step 3: Cross multiply
    21,611.76x = 32,417.32 × 13,180.74
  4. Step 4: Simplify right side
    21,611.76x = 427,284,266.42
  5. Step 5: Solve for x
    x = 427,284,266.42/21,611.76
  6. Step 6: Final answer
    x = 19,770.91

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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.