Home / 39,453.40-54,445.99-21,548.08

Finding the Fourth Proportional to 39,453.40, 54,445.99 and 21,548.08

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Solution

The fourth proportional to 39,453.40, 54,445.99 and 21,548.08 is: 29,736.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.40 : 54,445.99 = 21,548.08 : x
  2. Step 2: Convert to fraction form
    39,453.40/54,445.99 = 21,548.08/x
  3. Step 3: Cross multiply
    39,453.40x = 54,445.99 × 21,548.08
  4. Step 4: Simplify right side
    39,453.40x = 1,173,206,548.20
  5. Step 5: Solve for x
    x = 1,173,206,548.20/39,453.40
  6. Step 6: Final answer
    x = 29,736.51

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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.