Home / 33,154.25-45,720.45-21,213.23

Finding the Fourth Proportional to 33,154.25, 45,720.45 and 21,213.23

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Solution

The fourth proportional to 33,154.25, 45,720.45 and 21,213.23 is: 29,253.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,154.25 : 45,720.45 = 21,213.23 : x
  2. Step 2: Convert to fraction form
    33,154.25/45,720.45 = 21,213.23/x
  3. Step 3: Cross multiply
    33,154.25x = 45,720.45 × 21,213.23
  4. Step 4: Simplify right side
    33,154.25x = 969,878,421.55
  5. Step 5: Solve for x
    x = 969,878,421.55/33,154.25
  6. Step 6: Final answer
    x = 29,253.52

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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.