Home / 28,892.34-39,869.55-16,317.90

Finding the Fourth Proportional to 28,892.34, 39,869.55 and 16,317.90

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Solution

The fourth proportional to 28,892.34, 39,869.55 and 16,317.90 is: 22,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.34 : 39,869.55 = 16,317.90 : x
  2. Step 2: Convert to fraction form
    28,892.34/39,869.55 = 16,317.90/x
  3. Step 3: Cross multiply
    28,892.34x = 39,869.55 × 16,317.90
  4. Step 4: Simplify right side
    28,892.34x = 650,587,329.95
  5. Step 5: Solve for x
    x = 650,587,329.95/28,892.34
  6. Step 6: Final answer
    x = 22,517.64

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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.