Home / 21,367.54-32,055.36-8,880.78

Finding the Fourth Proportional to 21,367.54, 32,055.36 and 8,880.78

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Solution

The fourth proportional to 21,367.54, 32,055.36 and 8,880.78 is: 13,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.54 : 32,055.36 = 8,880.78 : x
  2. Step 2: Convert to fraction form
    21,367.54/32,055.36 = 8,880.78/x
  3. Step 3: Cross multiply
    21,367.54x = 32,055.36 × 8,880.78
  4. Step 4: Simplify right side
    21,367.54x = 284,676,599.98
  5. Step 5: Solve for x
    x = 284,676,599.98/21,367.54
  6. Step 6: Final answer
    x = 13,322.85

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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.