Home / 20,269.16-30,407-8,582.48

Finding the Fourth Proportional to 20,269.16, 30,407 and 8,582.48

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Solution

The fourth proportional to 20,269.16, 30,407 and 8,582.48 is: 12,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.16 : 30,407 = 8,582.48 : x
  2. Step 2: Convert to fraction form
    20,269.16/30,407 = 8,582.48/x
  3. Step 3: Cross multiply
    20,269.16x = 30,407 × 8,582.48
  4. Step 4: Simplify right side
    20,269.16x = 260,967,469.36
  5. Step 5: Solve for x
    x = 260,967,469.36/20,269.16
  6. Step 6: Final answer
    x = 12,875.10

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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.