Home / 28,930.64-43,395.50-9,208.91

Finding the Fourth Proportional to 28,930.64, 43,395.50 and 9,208.91

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Solution

The fourth proportional to 28,930.64, 43,395.50 and 9,208.91 is: 13,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.64 : 43,395.50 = 9,208.91 : x
  2. Step 2: Convert to fraction form
    28,930.64/43,395.50 = 9,208.91/x
  3. Step 3: Cross multiply
    28,930.64x = 43,395.50 × 9,208.91
  4. Step 4: Simplify right side
    28,930.64x = 399,625,089.52
  5. Step 5: Solve for x
    x = 399,625,089.52/28,930.64
  6. Step 6: Final answer
    x = 13,813.22

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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.