Home / 28,986.09-43,478.32-9,265.83

Finding the Fourth Proportional to 28,986.09, 43,478.32 and 9,265.83

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Solution

The fourth proportional to 28,986.09, 43,478.32 and 9,265.83 is: 13,898.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.09 : 43,478.32 = 9,265.83 : x
  2. Step 2: Convert to fraction form
    28,986.09/43,478.32 = 9,265.83/x
  3. Step 3: Cross multiply
    28,986.09x = 43,478.32 × 9,265.83
  4. Step 4: Simplify right side
    28,986.09x = 402,862,721.81
  5. Step 5: Solve for x
    x = 402,862,721.81/28,986.09
  6. Step 6: Final answer
    x = 13,898.48

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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.