Home / 40,122.79-55,368.77-22,217.41

Finding the Fourth Proportional to 40,122.79, 55,368.77 and 22,217.41

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Solution

The fourth proportional to 40,122.79, 55,368.77 and 22,217.41 is: 30,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.79 : 55,368.77 = 22,217.41 : x
  2. Step 2: Convert to fraction form
    40,122.79/55,368.77 = 22,217.41/x
  3. Step 3: Cross multiply
    40,122.79x = 55,368.77 × 22,217.41
  4. Step 4: Simplify right side
    40,122.79x = 1,230,150,664.29
  5. Step 5: Solve for x
    x = 1,230,150,664.29/40,122.79
  6. Step 6: Final answer
    x = 30,659.65

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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.