Home / 28,943.38-39,939.48-16,195.90

Finding the Fourth Proportional to 28,943.38, 39,939.48 and 16,195.90

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Solution

The fourth proportional to 28,943.38, 39,939.48 and 16,195.90 is: 22,349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,943.38 : 39,939.48 = 16,195.90 : x
  2. Step 2: Convert to fraction form
    28,943.38/39,939.48 = 16,195.90/x
  3. Step 3: Cross multiply
    28,943.38x = 39,939.48 × 16,195.90
  4. Step 4: Simplify right side
    28,943.38x = 646,855,799.17
  5. Step 5: Solve for x
    x = 646,855,799.17/28,943.38
  6. Step 6: Final answer
    x = 22,349.01

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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.