Home / 20,526.47-30,778.12-6,483.90

Finding the Fourth Proportional to 20,526.47, 30,778.12 and 6,483.90

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Solution

The fourth proportional to 20,526.47, 30,778.12 and 6,483.90 is: 9,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.47 : 30,778.12 = 6,483.90 : x
  2. Step 2: Convert to fraction form
    20,526.47/30,778.12 = 6,483.90/x
  3. Step 3: Cross multiply
    20,526.47x = 30,778.12 × 6,483.90
  4. Step 4: Simplify right side
    20,526.47x = 199,562,252.27
  5. Step 5: Solve for x
    x = 199,562,252.27/20,526.47
  6. Step 6: Final answer
    x = 9,722.19

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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.