Home / 21,455.52-29,611.04-12,503.36

Finding the Fourth Proportional to 21,455.52, 29,611.04 and 12,503.36

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Solution

The fourth proportional to 21,455.52, 29,611.04 and 12,503.36 is: 17,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.52 : 29,611.04 = 12,503.36 : x
  2. Step 2: Convert to fraction form
    21,455.52/29,611.04 = 12,503.36/x
  3. Step 3: Cross multiply
    21,455.52x = 29,611.04 × 12,503.36
  4. Step 4: Simplify right side
    21,455.52x = 370,237,493.09
  5. Step 5: Solve for x
    x = 370,237,493.09/21,455.52
  6. Step 6: Final answer
    x = 17,256.05

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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.