Home / 39,230.40-54,137.60-21,325.44

Finding the Fourth Proportional to 39,230.40, 54,137.60 and 21,325.44

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Solution

The fourth proportional to 39,230.40, 54,137.60 and 21,325.44 is: 29,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.40 : 54,137.60 = 21,325.44 : x
  2. Step 2: Convert to fraction form
    39,230.40/54,137.60 = 21,325.44/x
  3. Step 3: Cross multiply
    39,230.40x = 54,137.60 × 21,325.44
  4. Step 4: Simplify right side
    39,230.40x = 1,154,508,140.54
  5. Step 5: Solve for x
    x = 1,154,508,140.54/39,230.40
  6. Step 6: Final answer
    x = 29,428.92

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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.