Home / 33,242.12-45,878.88-21,909.68

Finding the Fourth Proportional to 33,242.12, 45,878.88 and 21,909.68

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Solution

The fourth proportional to 33,242.12, 45,878.88 and 21,909.68 is: 30,238.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,242.12 : 45,878.88 = 21,909.68 : x
  2. Step 2: Convert to fraction form
    33,242.12/45,878.88 = 21,909.68/x
  3. Step 3: Cross multiply
    33,242.12x = 45,878.88 × 21,909.68
  4. Step 4: Simplify right side
    33,242.12x = 1,005,191,579.56
  5. Step 5: Solve for x
    x = 1,005,191,579.56/33,242.12
  6. Step 6: Final answer
    x = 30,238.49

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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.