Home / 20,220.08-30,327.24-6,368.72

Finding the Fourth Proportional to 20,220.08, 30,327.24 and 6,368.72

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Solution

The fourth proportional to 20,220.08, 30,327.24 and 6,368.72 is: 9,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.08 : 30,327.24 = 6,368.72 : x
  2. Step 2: Convert to fraction form
    20,220.08/30,327.24 = 6,368.72/x
  3. Step 3: Cross multiply
    20,220.08x = 30,327.24 × 6,368.72
  4. Step 4: Simplify right side
    20,220.08x = 193,145,699.93
  5. Step 5: Solve for x
    x = 193,145,699.93/20,220.08
  6. Step 6: Final answer
    x = 9,552.17

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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.