Home / 28,509.25-39,343.98-15,934

Finding the Fourth Proportional to 28,509.25, 39,343.98 and 15,934

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Solution

The fourth proportional to 28,509.25, 39,343.98 and 15,934 is: 21,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.25 : 39,343.98 = 15,934 : x
  2. Step 2: Convert to fraction form
    28,509.25/39,343.98 = 15,934/x
  3. Step 3: Cross multiply
    28,509.25x = 39,343.98 × 15,934
  4. Step 4: Simplify right side
    28,509.25x = 626,906,977.32
  5. Step 5: Solve for x
    x = 626,906,977.32/28,509.25
  6. Step 6: Final answer
    x = 21,989.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.