Home / 28,890.32-43,335.50-11,359.71

Finding the Fourth Proportional to 28,890.32, 43,335.50 and 11,359.71

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Solution

The fourth proportional to 28,890.32, 43,335.50 and 11,359.71 is: 17,039.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.32 : 43,335.50 = 11,359.71 : x
  2. Step 2: Convert to fraction form
    28,890.32/43,335.50 = 11,359.71/x
  3. Step 3: Cross multiply
    28,890.32x = 43,335.50 × 11,359.71
  4. Step 4: Simplify right side
    28,890.32x = 492,278,655.91
  5. Step 5: Solve for x
    x = 492,278,655.91/28,890.32
  6. Step 6: Final answer
    x = 17,039.57

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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.