Home / 27,172.57-40,693.02-13,810.42

Finding the Fourth Proportional to 27,172.57, 40,693.02 and 13,810.42

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Solution

The fourth proportional to 27,172.57, 40,693.02 and 13,810.42 is: 20,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,172.57 : 40,693.02 = 13,810.42 : x
  2. Step 2: Convert to fraction form
    27,172.57/40,693.02 = 13,810.42/x
  3. Step 3: Cross multiply
    27,172.57x = 40,693.02 × 13,810.42
  4. Step 4: Simplify right side
    27,172.57x = 561,987,697.27
  5. Step 5: Solve for x
    x = 561,987,697.27/27,172.57
  6. Step 6: Final answer
    x = 20,682.17

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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.