Home / 28,113.48-42,170.22-8,392.41

Finding the Fourth Proportional to 28,113.48, 42,170.22 and 8,392.41

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Solution

The fourth proportional to 28,113.48, 42,170.22 and 8,392.41 is: 12,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.48 : 42,170.22 = 8,392.41 : x
  2. Step 2: Convert to fraction form
    28,113.48/42,170.22 = 8,392.41/x
  3. Step 3: Cross multiply
    28,113.48x = 42,170.22 × 8,392.41
  4. Step 4: Simplify right side
    28,113.48x = 353,909,776.03
  5. Step 5: Solve for x
    x = 353,909,776.03/28,113.48
  6. Step 6: Final answer
    x = 12,588.62

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Similar ratio
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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.