Home / 42,293.76-63,433.44-11,129.28

Finding the Fourth Proportional to 42,293.76, 63,433.44 and 11,129.28

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Solution

The fourth proportional to 42,293.76, 63,433.44 and 11,129.28 is: 16,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,293.76 : 63,433.44 = 11,129.28 : x
  2. Step 2: Convert to fraction form
    42,293.76/63,433.44 = 11,129.28/x
  3. Step 3: Cross multiply
    42,293.76x = 63,433.44 × 11,129.28
  4. Step 4: Simplify right side
    42,293.76x = 705,968,515.12
  5. Step 5: Solve for x
    x = 705,968,515.12/42,293.76
  6. Step 6: Final answer
    x = 16,692.03

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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.