Home / 28,909.88-43,370.94-10,189.16

Finding the Fourth Proportional to 28,909.88, 43,370.94 and 10,189.16

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Solution

The fourth proportional to 28,909.88, 43,370.94 and 10,189.16 is: 15,285.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.88 : 43,370.94 = 10,189.16 : x
  2. Step 2: Convert to fraction form
    28,909.88/43,370.94 = 10,189.16/x
  3. Step 3: Cross multiply
    28,909.88x = 43,370.94 × 10,189.16
  4. Step 4: Simplify right side
    28,909.88x = 441,913,447.01
  5. Step 5: Solve for x
    x = 441,913,447.01/28,909.88
  6. Step 6: Final answer
    x = 15,285.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.