Home / 20,235.02-30,345.23-8,549.15

Finding the Fourth Proportional to 20,235.02, 30,345.23 and 8,549.15

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Solution

The fourth proportional to 20,235.02, 30,345.23 and 8,549.15 is: 12,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.02 : 30,345.23 = 8,549.15 : x
  2. Step 2: Convert to fraction form
    20,235.02/30,345.23 = 8,549.15/x
  3. Step 3: Cross multiply
    20,235.02x = 30,345.23 × 8,549.15
  4. Step 4: Simplify right side
    20,235.02x = 259,425,792.70
  5. Step 5: Solve for x
    x = 259,425,792.70/20,235.02
  6. Step 6: Final answer
    x = 12,820.64

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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.