Home / 20,403.60-30,607.56-6,363.84

Finding the Fourth Proportional to 20,403.60, 30,607.56 and 6,363.84

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Solution

The fourth proportional to 20,403.60, 30,607.56 and 6,363.84 is: 9,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.60 : 30,607.56 = 6,363.84 : x
  2. Step 2: Convert to fraction form
    20,403.60/30,607.56 = 6,363.84/x
  3. Step 3: Cross multiply
    20,403.60x = 30,607.56 × 6,363.84
  4. Step 4: Simplify right side
    20,403.60x = 194,781,614.63
  5. Step 5: Solve for x
    x = 194,781,614.63/20,403.60
  6. Step 6: Final answer
    x = 9,546.43

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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.