Home / 20,184.74-30,280.79-8,332.05

Finding the Fourth Proportional to 20,184.74, 30,280.79 and 8,332.05

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Solution

The fourth proportional to 20,184.74, 30,280.79 and 8,332.05 is: 12,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.74 : 30,280.79 = 8,332.05 : x
  2. Step 2: Convert to fraction form
    20,184.74/30,280.79 = 8,332.05/x
  3. Step 3: Cross multiply
    20,184.74x = 30,280.79 × 8,332.05
  4. Step 4: Simplify right side
    20,184.74x = 252,301,056.32
  5. Step 5: Solve for x
    x = 252,301,056.32/20,184.74
  6. Step 6: Final answer
    x = 12,499.59

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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.