Home / 28,885.73-39,861.59-16,138.13

Finding the Fourth Proportional to 28,885.73, 39,861.59 and 16,138.13

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Solution

The fourth proportional to 28,885.73, 39,861.59 and 16,138.13 is: 22,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885.73 : 39,861.59 = 16,138.13 : x
  2. Step 2: Convert to fraction form
    28,885.73/39,861.59 = 16,138.13/x
  3. Step 3: Cross multiply
    28,885.73x = 39,861.59 × 16,138.13
  4. Step 4: Simplify right side
    28,885.73x = 643,291,241.43
  5. Step 5: Solve for x
    x = 643,291,241.43/28,885.73
  6. Step 6: Final answer
    x = 22,270.21

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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.