Home / 27,617.14-38,099.53-18,661.38

Finding the Fourth Proportional to 27,617.14, 38,099.53 and 18,661.38

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Solution

The fourth proportional to 27,617.14, 38,099.53 and 18,661.38 is: 25,744.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.14 : 38,099.53 = 18,661.38 : x
  2. Step 2: Convert to fraction form
    27,617.14/38,099.53 = 18,661.38/x
  3. Step 3: Cross multiply
    27,617.14x = 38,099.53 × 18,661.38
  4. Step 4: Simplify right side
    27,617.14x = 710,989,807.15
  5. Step 5: Solve for x
    x = 710,989,807.15/27,617.14
  6. Step 6: Final answer
    x = 25,744.51

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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.