Home / 20,187.55-30,259.02-8,334.79

Finding the Fourth Proportional to 20,187.55, 30,259.02 and 8,334.79

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Solution

The fourth proportional to 20,187.55, 30,259.02 and 8,334.79 is: 12,492.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.55 : 30,259.02 = 8,334.79 : x
  2. Step 2: Convert to fraction form
    20,187.55/30,259.02 = 8,334.79/x
  3. Step 3: Cross multiply
    20,187.55x = 30,259.02 × 8,334.79
  4. Step 4: Simplify right side
    20,187.55x = 252,202,501.66
  5. Step 5: Solve for x
    x = 252,202,501.66/20,187.55
  6. Step 6: Final answer
    x = 12,492.97

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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.