Home / 39,230.14-54,137.88-21,325.12

Finding the Fourth Proportional to 39,230.14, 54,137.88 and 21,325.12

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Solution

The fourth proportional to 39,230.14, 54,137.88 and 21,325.12 is: 29,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.14 : 54,137.88 = 21,325.12 : x
  2. Step 2: Convert to fraction form
    39,230.14/54,137.88 = 21,325.12/x
  3. Step 3: Cross multiply
    39,230.14x = 54,137.88 × 21,325.12
  4. Step 4: Simplify right side
    39,230.14x = 1,154,496,787.55
  5. Step 5: Solve for x
    x = 1,154,496,787.55/39,230.14
  6. Step 6: Final answer
    x = 29,428.82

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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.