Home / 27,142.48-37,435.56-18,187.12

Finding the Fourth Proportional to 27,142.48, 37,435.56 and 18,187.12

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Solution

The fourth proportional to 27,142.48, 37,435.56 and 18,187.12 is: 25,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.48 : 37,435.56 = 18,187.12 : x
  2. Step 2: Convert to fraction form
    27,142.48/37,435.56 = 18,187.12/x
  3. Step 3: Cross multiply
    27,142.48x = 37,435.56 × 18,187.12
  4. Step 4: Simplify right side
    27,142.48x = 680,845,021.99
  5. Step 5: Solve for x
    x = 680,845,021.99/27,142.48
  6. Step 6: Final answer
    x = 25,084.11

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1.5x scale

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.