Home / 27,871.64-38,494.80-18,354.07

Finding the Fourth Proportional to 27,871.64, 38,494.80 and 18,354.07

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Solution

The fourth proportional to 27,871.64, 38,494.80 and 18,354.07 is: 25,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.64 : 38,494.80 = 18,354.07 : x
  2. Step 2: Convert to fraction form
    27,871.64/38,494.80 = 18,354.07/x
  3. Step 3: Cross multiply
    27,871.64x = 38,494.80 × 18,354.07
  4. Step 4: Simplify right side
    27,871.64x = 706,536,253.84
  5. Step 5: Solve for x
    x = 706,536,253.84/27,871.64
  6. Step 6: Final answer
    x = 25,349.65

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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.