Home / 42,455.22-63,682.76-11,290.47

Finding the Fourth Proportional to 42,455.22, 63,682.76 and 11,290.47

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Solution

The fourth proportional to 42,455.22, 63,682.76 and 11,290.47 is: 16,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,455.22 : 63,682.76 = 11,290.47 : x
  2. Step 2: Convert to fraction form
    42,455.22/63,682.76 = 11,290.47/x
  3. Step 3: Cross multiply
    42,455.22x = 63,682.76 × 11,290.47
  4. Step 4: Simplify right side
    42,455.22x = 719,008,234.84
  5. Step 5: Solve for x
    x = 719,008,234.84/42,455.22
  6. Step 6: Final answer
    x = 16,935.69

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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.