Home / 42,493.05-63,739.62-11,328.30

Finding the Fourth Proportional to 42,493.05, 63,739.62 and 11,328.30

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Solution

The fourth proportional to 42,493.05, 63,739.62 and 11,328.30 is: 16,992.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,493.05 : 63,739.62 = 11,328.30 : x
  2. Step 2: Convert to fraction form
    42,493.05/63,739.62 = 11,328.30/x
  3. Step 3: Cross multiply
    42,493.05x = 63,739.62 × 11,328.30
  4. Step 4: Simplify right side
    42,493.05x = 722,061,537.25
  5. Step 5: Solve for x
    x = 722,061,537.25/42,493.05
  6. Step 6: Final answer
    x = 16,992.46

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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.