Home / 33,429.60-46,126.80-21,490.20

Finding the Fourth Proportional to 33,429.60, 46,126.80 and 21,490.20

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Solution

The fourth proportional to 33,429.60, 46,126.80 and 21,490.20 is: 29,652.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,429.60 : 46,126.80 = 21,490.20 : x
  2. Step 2: Convert to fraction form
    33,429.60/46,126.80 = 21,490.20/x
  3. Step 3: Cross multiply
    33,429.60x = 46,126.80 × 21,490.20
  4. Step 4: Simplify right side
    33,429.60x = 991,274,157.36
  5. Step 5: Solve for x
    x = 991,274,157.36/33,429.60
  6. Step 6: Final answer
    x = 29,652.59

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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.