Home / 40,109.64-55,352.22-22,205.40

Finding the Fourth Proportional to 40,109.64, 55,352.22 and 22,205.40

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Solution

The fourth proportional to 40,109.64, 55,352.22 and 22,205.40 is: 30,643.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,109.64 : 55,352.22 = 22,205.40 : x
  2. Step 2: Convert to fraction form
    40,109.64/55,352.22 = 22,205.40/x
  3. Step 3: Cross multiply
    40,109.64x = 55,352.22 × 22,205.40
  4. Step 4: Simplify right side
    40,109.64x = 1,229,118,185.99
  5. Step 5: Solve for x
    x = 1,229,118,185.99/40,109.64
  6. Step 6: Final answer
    x = 30,643.96

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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.