Home / 20,468.10-30,647.46-13,032.30

Finding the Fourth Proportional to 20,468.10, 30,647.46 and 13,032.30

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Solution

The fourth proportional to 20,468.10, 30,647.46 and 13,032.30 is: 19,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.10 : 30,647.46 = 13,032.30 : x
  2. Step 2: Convert to fraction form
    20,468.10/30,647.46 = 13,032.30/x
  3. Step 3: Cross multiply
    20,468.10x = 30,647.46 × 13,032.30
  4. Step 4: Simplify right side
    20,468.10x = 399,406,892.96
  5. Step 5: Solve for x
    x = 399,406,892.96/20,468.10
  6. Step 6: Final answer
    x = 19,513.63

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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.