Home / 42,539.67-63,791.01-12,950.64

Finding the Fourth Proportional to 42,539.67, 63,791.01 and 12,950.64

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Solution

The fourth proportional to 42,539.67, 63,791.01 and 12,950.64 is: 19,420.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,539.67 : 63,791.01 = 12,950.64 : x
  2. Step 2: Convert to fraction form
    42,539.67/63,791.01 = 12,950.64/x
  3. Step 3: Cross multiply
    42,539.67x = 63,791.01 × 12,950.64
  4. Step 4: Simplify right side
    42,539.67x = 826,134,405.75
  5. Step 5: Solve for x
    x = 826,134,405.75/42,539.67
  6. Step 6: Final answer
    x = 19,420.33

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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.