Home / 20,349.66-30,520.35-5,557.34

Finding the Fourth Proportional to 20,349.66, 30,520.35 and 5,557.34

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Solution

The fourth proportional to 20,349.66, 30,520.35 and 5,557.34 is: 8,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.66 : 30,520.35 = 5,557.34 : x
  2. Step 2: Convert to fraction form
    20,349.66/30,520.35 = 5,557.34/x
  3. Step 3: Cross multiply
    20,349.66x = 30,520.35 × 5,557.34
  4. Step 4: Simplify right side
    20,349.66x = 169,611,809.27
  5. Step 5: Solve for x
    x = 169,611,809.27/20,349.66
  6. Step 6: Final answer
    x = 8,334.87

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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.