Home / 40,043.87-55,257.63-22,139.09

Finding the Fourth Proportional to 40,043.87, 55,257.63 and 22,139.09

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Solution

The fourth proportional to 40,043.87, 55,257.63 and 22,139.09 is: 30,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.87 : 55,257.63 = 22,139.09 : x
  2. Step 2: Convert to fraction form
    40,043.87/55,257.63 = 22,139.09/x
  3. Step 3: Cross multiply
    40,043.87x = 55,257.63 × 22,139.09
  4. Step 4: Simplify right side
    40,043.87x = 1,223,353,643.76
  5. Step 5: Solve for x
    x = 1,223,353,643.76/40,043.87
  6. Step 6: Final answer
    x = 30,550.34

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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.