Home / 30,487.72-45,733.36-11,767.86

Finding the Fourth Proportional to 30,487.72, 45,733.36 and 11,767.86

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Solution

The fourth proportional to 30,487.72, 45,733.36 and 11,767.86 is: 17,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.72 : 45,733.36 = 11,767.86 : x
  2. Step 2: Convert to fraction form
    30,487.72/45,733.36 = 11,767.86/x
  3. Step 3: Cross multiply
    30,487.72x = 45,733.36 × 11,767.86
  4. Step 4: Simplify right side
    30,487.72x = 538,183,777.81
  5. Step 5: Solve for x
    x = 538,183,777.81/30,487.72
  6. Step 6: Final answer
    x = 17,652.48

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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.