Home / 28,171.99-38,877.28-16,235.22

Finding the Fourth Proportional to 28,171.99, 38,877.28 and 16,235.22

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Solution

The fourth proportional to 28,171.99, 38,877.28 and 16,235.22 is: 22,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.99 : 38,877.28 = 16,235.22 : x
  2. Step 2: Convert to fraction form
    28,171.99/38,877.28 = 16,235.22/x
  3. Step 3: Cross multiply
    28,171.99x = 38,877.28 × 16,235.22
  4. Step 4: Simplify right side
    28,171.99x = 631,181,193.80
  5. Step 5: Solve for x
    x = 631,181,193.80/28,171.99
  6. Step 6: Final answer
    x = 22,404.57

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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.