Home / 39,103.08-53,962.32-21,197.92

Finding the Fourth Proportional to 39,103.08, 53,962.32 and 21,197.92

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Solution

The fourth proportional to 39,103.08, 53,962.32 and 21,197.92 is: 29,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,103.08 : 53,962.32 = 21,197.92 : x
  2. Step 2: Convert to fraction form
    39,103.08/53,962.32 = 21,197.92/x
  3. Step 3: Cross multiply
    39,103.08x = 53,962.32 × 21,197.92
  4. Step 4: Simplify right side
    39,103.08x = 1,143,888,942.37
  5. Step 5: Solve for x
    x = 1,143,888,942.37/39,103.08
  6. Step 6: Final answer
    x = 29,253.17

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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.