Home / 27,917.74-38,536.59-18,489.34

Finding the Fourth Proportional to 27,917.74, 38,536.59 and 18,489.34

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Solution

The fourth proportional to 27,917.74, 38,536.59 and 18,489.34 is: 25,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,917.74 : 38,536.59 = 18,489.34 : x
  2. Step 2: Convert to fraction form
    27,917.74/38,536.59 = 18,489.34/x
  3. Step 3: Cross multiply
    27,917.74x = 38,536.59 × 18,489.34
  4. Step 4: Simplify right side
    27,917.74x = 712,516,114.95
  5. Step 5: Solve for x
    x = 712,516,114.95/27,917.74
  6. Step 6: Final answer
    x = 25,521.98

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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.