Home / 42,255.33-63,378.86-11,090.58

Finding the Fourth Proportional to 42,255.33, 63,378.86 and 11,090.58

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Solution

The fourth proportional to 42,255.33, 63,378.86 and 11,090.58 is: 16,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,255.33 : 63,378.86 = 11,090.58 : x
  2. Step 2: Convert to fraction form
    42,255.33/63,378.86 = 11,090.58/x
  3. Step 3: Cross multiply
    42,255.33x = 63,378.86 × 11,090.58
  4. Step 4: Simplify right side
    42,255.33x = 702,908,317.14
  5. Step 5: Solve for x
    x = 702,908,317.14/42,255.33
  6. Step 6: Final answer
    x = 16,634.78

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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.