Home / 40,138.24-55,390.44-23,136.28

Finding the Fourth Proportional to 40,138.24, 55,390.44 and 23,136.28

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Solution

The fourth proportional to 40,138.24, 55,390.44 and 23,136.28 is: 31,927.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.24 : 55,390.44 = 23,136.28 : x
  2. Step 2: Convert to fraction form
    40,138.24/55,390.44 = 23,136.28/x
  3. Step 3: Cross multiply
    40,138.24x = 55,390.44 × 23,136.28
  4. Step 4: Simplify right side
    40,138.24x = 1,281,528,729.16
  5. Step 5: Solve for x
    x = 1,281,528,729.16/40,138.24
  6. Step 6: Final answer
    x = 31,927.88

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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.