Home / 20,617.08-30,929.30-6,580.19

Finding the Fourth Proportional to 20,617.08, 30,929.30 and 6,580.19

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Solution

The fourth proportional to 20,617.08, 30,929.30 and 6,580.19 is: 9,871.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617.08 : 30,929.30 = 6,580.19 : x
  2. Step 2: Convert to fraction form
    20,617.08/30,929.30 = 6,580.19/x
  3. Step 3: Cross multiply
    20,617.08x = 30,929.30 × 6,580.19
  4. Step 4: Simplify right side
    20,617.08x = 203,520,483.02
  5. Step 5: Solve for x
    x = 203,520,483.02/20,617.08
  6. Step 6: Final answer
    x = 9,871.45

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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.