Home / 40,043.64-55,260.36-21,894.72

Finding the Fourth Proportional to 40,043.64, 55,260.36 and 21,894.72

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Solution

The fourth proportional to 40,043.64, 55,260.36 and 21,894.72 is: 30,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.64 : 55,260.36 = 21,894.72 : x
  2. Step 2: Convert to fraction form
    40,043.64/55,260.36 = 21,894.72/x
  3. Step 3: Cross multiply
    40,043.64x = 55,260.36 × 21,894.72
  4. Step 4: Simplify right side
    40,043.64x = 1,209,910,109.30
  5. Step 5: Solve for x
    x = 1,209,910,109.30/40,043.64
  6. Step 6: Final answer
    x = 30,214.79

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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.