Home / 39,335.44-54,284.16-21,431.02

Finding the Fourth Proportional to 39,335.44, 54,284.16 and 21,431.02

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Solution

The fourth proportional to 39,335.44, 54,284.16 and 21,431.02 is: 29,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,335.44 : 54,284.16 = 21,431.02 : x
  2. Step 2: Convert to fraction form
    39,335.44/54,284.16 = 21,431.02/x
  3. Step 3: Cross multiply
    39,335.44x = 54,284.16 × 21,431.02
  4. Step 4: Simplify right side
    39,335.44x = 1,163,364,918.64
  5. Step 5: Solve for x
    x = 1,163,364,918.64/39,335.44
  6. Step 6: Final answer
    x = 29,575.49

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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.