Home / 39,359.08-54,314.82-21,453.96

Finding the Fourth Proportional to 39,359.08, 54,314.82 and 21,453.96

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Solution

The fourth proportional to 39,359.08, 54,314.82 and 21,453.96 is: 29,606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,359.08 : 54,314.82 = 21,453.96 : x
  2. Step 2: Convert to fraction form
    39,359.08/54,314.82 = 21,453.96/x
  3. Step 3: Cross multiply
    39,359.08x = 54,314.82 × 21,453.96
  4. Step 4: Simplify right side
    39,359.08x = 1,165,267,975.69
  5. Step 5: Solve for x
    x = 1,165,267,975.69/39,359.08
  6. Step 6: Final answer
    x = 29,606.08

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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.