Home / 39,897.10-55,057.99-21,992.41

Finding the Fourth Proportional to 39,897.10, 55,057.99 and 21,992.41

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Solution

The fourth proportional to 39,897.10, 55,057.99 and 21,992.41 is: 30,349.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.10 : 55,057.99 = 21,992.41 : x
  2. Step 2: Convert to fraction form
    39,897.10/55,057.99 = 21,992.41/x
  3. Step 3: Cross multiply
    39,897.10x = 55,057.99 × 21,992.41
  4. Step 4: Simplify right side
    39,897.10x = 1,210,857,724.72
  5. Step 5: Solve for x
    x = 1,210,857,724.72/39,897.10
  6. Step 6: Final answer
    x = 30,349.52

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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.