Home / 40,123.28-55,369.72-23,121.26

Finding the Fourth Proportional to 40,123.28, 55,369.72 and 23,121.26

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Solution

The fourth proportional to 40,123.28, 55,369.72 and 23,121.26 is: 31,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,123.28 : 55,369.72 = 23,121.26 : x
  2. Step 2: Convert to fraction form
    40,123.28/55,369.72 = 23,121.26/x
  3. Step 3: Cross multiply
    40,123.28x = 55,369.72 × 23,121.26
  4. Step 4: Simplify right side
    40,123.28x = 1,280,217,692.25
  5. Step 5: Solve for x
    x = 1,280,217,692.25/40,123.28
  6. Step 6: Final answer
    x = 31,907.10

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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.