Home / 42,513.08-63,742.26-20,325.96

Finding the Fourth Proportional to 42,513.08, 63,742.26 and 20,325.96

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Solution

The fourth proportional to 42,513.08, 63,742.26 and 20,325.96 is: 30,475.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,513.08 : 63,742.26 = 20,325.96 : x
  2. Step 2: Convert to fraction form
    42,513.08/63,742.26 = 20,325.96/x
  3. Step 3: Cross multiply
    42,513.08x = 63,742.26 × 20,325.96
  4. Step 4: Simplify right side
    42,513.08x = 1,295,622,627.07
  5. Step 5: Solve for x
    x = 1,295,622,627.07/42,513.08
  6. Step 6: Final answer
    x = 30,475.86

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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.