Home / 21,100.52-29,092.26-13,533.50

Finding the Fourth Proportional to 21,100.52, 29,092.26 and 13,533.50

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Solution

The fourth proportional to 21,100.52, 29,092.26 and 13,533.50 is: 18,659.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.52 : 29,092.26 = 13,533.50 : x
  2. Step 2: Convert to fraction form
    21,100.52/29,092.26 = 13,533.50/x
  3. Step 3: Cross multiply
    21,100.52x = 29,092.26 × 13,533.50
  4. Step 4: Simplify right side
    21,100.52x = 393,720,173.44
  5. Step 5: Solve for x
    x = 393,720,173.44/21,100.52
  6. Step 6: Final answer
    x = 18,659.26

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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.