Home / 40,043.20-55,257.88-21,893.59

Finding the Fourth Proportional to 40,043.20, 55,257.88 and 21,893.59

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Solution

The fourth proportional to 40,043.20, 55,257.88 and 21,893.59 is: 30,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.20 : 55,257.88 = 21,893.59 : x
  2. Step 2: Convert to fraction form
    40,043.20/55,257.88 = 21,893.59/x
  3. Step 3: Cross multiply
    40,043.20x = 55,257.88 × 21,893.59
  4. Step 4: Simplify right side
    40,043.20x = 1,209,793,368.99
  5. Step 5: Solve for x
    x = 1,209,793,368.99/40,043.20
  6. Step 6: Final answer
    x = 30,212.21

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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.