Home / 19,131.40-28,708.28-8,037.28

Finding the Fourth Proportional to 19,131.40, 28,708.28 and 8,037.28

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Solution

The fourth proportional to 19,131.40, 28,708.28 and 8,037.28 is: 12,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.40 : 28,708.28 = 8,037.28 : x
  2. Step 2: Convert to fraction form
    19,131.40/28,708.28 = 8,037.28/x
  3. Step 3: Cross multiply
    19,131.40x = 28,708.28 × 8,037.28
  4. Step 4: Simplify right side
    19,131.40x = 230,736,484.68
  5. Step 5: Solve for x
    x = 230,736,484.68/19,131.40
  6. Step 6: Final answer
    x = 12,060.62

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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.