Home / 39,599.12-54,647.38-21,694.08

Finding the Fourth Proportional to 39,599.12, 54,647.38 and 21,694.08

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Solution

The fourth proportional to 39,599.12, 54,647.38 and 21,694.08 is: 29,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,599.12 : 54,647.38 = 21,694.08 : x
  2. Step 2: Convert to fraction form
    39,599.12/54,647.38 = 21,694.08/x
  3. Step 3: Cross multiply
    39,599.12x = 54,647.38 × 21,694.08
  4. Step 4: Simplify right side
    39,599.12x = 1,185,524,633.51
  5. Step 5: Solve for x
    x = 1,185,524,633.51/39,599.12
  6. Step 6: Final answer
    x = 29,938.16

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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.