Home / 40,136.94-55,331.28-28,163.16

Finding the Fourth Proportional to 40,136.94, 55,331.28 and 28,163.16

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Solution

The fourth proportional to 40,136.94, 55,331.28 and 28,163.16 is: 38,824.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.94 : 55,331.28 = 28,163.16 : x
  2. Step 2: Convert to fraction form
    40,136.94/55,331.28 = 28,163.16/x
  3. Step 3: Cross multiply
    40,136.94x = 55,331.28 × 28,163.16
  4. Step 4: Simplify right side
    40,136.94x = 1,558,303,691.64
  5. Step 5: Solve for x
    x = 1,558,303,691.64/40,136.94
  6. Step 6: Final answer
    x = 38,824.68

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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.