Home / 31,487.76-47,232.96-11,764.32

Finding the Fourth Proportional to 31,487.76, 47,232.96 and 11,764.32

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Solution

The fourth proportional to 31,487.76, 47,232.96 and 11,764.32 is: 17,646.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.76 : 47,232.96 = 11,764.32 : x
  2. Step 2: Convert to fraction form
    31,487.76/47,232.96 = 11,764.32/x
  3. Step 3: Cross multiply
    31,487.76x = 47,232.96 × 11,764.32
  4. Step 4: Simplify right side
    31,487.76x = 555,663,655.99
  5. Step 5: Solve for x
    x = 555,663,655.99/31,487.76
  6. Step 6: Final answer
    x = 17,646.97

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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.