Home / 18,941.15-28,430.87-17,079.47

Finding the Fourth Proportional to 18,941.15, 28,430.87 and 17,079.47

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Solution

The fourth proportional to 18,941.15, 28,430.87 and 17,079.47 is: 25,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.15 : 28,430.87 = 17,079.47 : x
  2. Step 2: Convert to fraction form
    18,941.15/28,430.87 = 17,079.47/x
  3. Step 3: Cross multiply
    18,941.15x = 28,430.87 × 17,079.47
  4. Step 4: Simplify right side
    18,941.15x = 485,584,070.30
  5. Step 5: Solve for x
    x = 485,584,070.30/18,941.15
  6. Step 6: Final answer
    x = 25,636.46

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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.