Home / 39,338.23-54,287.40-21,433.99

Finding the Fourth Proportional to 39,338.23, 54,287.40 and 21,433.99

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Solution

The fourth proportional to 39,338.23, 54,287.40 and 21,433.99 is: 29,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,338.23 : 54,287.40 = 21,433.99 : x
  2. Step 2: Convert to fraction form
    39,338.23/54,287.40 = 21,433.99/x
  3. Step 3: Cross multiply
    39,338.23x = 54,287.40 × 21,433.99
  4. Step 4: Simplify right side
    39,338.23x = 1,163,595,588.73
  5. Step 5: Solve for x
    x = 1,163,595,588.73/39,338.23
  6. Step 6: Final answer
    x = 29,579.26

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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.