Home / 28,909.35-43,370.22-10,188.63

Finding the Fourth Proportional to 28,909.35, 43,370.22 and 10,188.63

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Solution

The fourth proportional to 28,909.35, 43,370.22 and 10,188.63 is: 15,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.35 : 43,370.22 = 10,188.63 : x
  2. Step 2: Convert to fraction form
    28,909.35/43,370.22 = 10,188.63/x
  3. Step 3: Cross multiply
    28,909.35x = 43,370.22 × 10,188.63
  4. Step 4: Simplify right side
    28,909.35x = 441,883,124.60
  5. Step 5: Solve for x
    x = 441,883,124.60/28,909.35
  6. Step 6: Final answer
    x = 15,285.13

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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.