Home / 39,234.67-54,144.42-21,329.63

Finding the Fourth Proportional to 39,234.67, 54,144.42 and 21,329.63

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Solution

The fourth proportional to 39,234.67, 54,144.42 and 21,329.63 is: 29,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,234.67 : 54,144.42 = 21,329.63 : x
  2. Step 2: Convert to fraction form
    39,234.67/54,144.42 = 21,329.63/x
  3. Step 3: Cross multiply
    39,234.67x = 54,144.42 × 21,329.63
  4. Step 4: Simplify right side
    39,234.67x = 1,154,880,477.47
  5. Step 5: Solve for x
    x = 1,154,880,477.47/39,234.67
  6. Step 6: Final answer
    x = 29,435.21

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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.