Home / 39,359.16-54,313.97-21,453.75

Finding the Fourth Proportional to 39,359.16, 54,313.97 and 21,453.75

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Solution

The fourth proportional to 39,359.16, 54,313.97 and 21,453.75 is: 29,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,359.16 : 54,313.97 = 21,453.75 : x
  2. Step 2: Convert to fraction form
    39,359.16/54,313.97 = 21,453.75/x
  3. Step 3: Cross multiply
    39,359.16x = 54,313.97 × 21,453.75
  4. Step 4: Simplify right side
    39,359.16x = 1,165,238,226.62
  5. Step 5: Solve for x
    x = 1,165,238,226.62/39,359.16
  6. Step 6: Final answer
    x = 29,605.26

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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.