Home / 27,712.63-38,213.17-18,744.58

Finding the Fourth Proportional to 27,712.63, 38,213.17 and 18,744.58

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Solution

The fourth proportional to 27,712.63, 38,213.17 and 18,744.58 is: 25,847.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.63 : 38,213.17 = 18,744.58 : x
  2. Step 2: Convert to fraction form
    27,712.63/38,213.17 = 18,744.58/x
  3. Step 3: Cross multiply
    27,712.63x = 38,213.17 × 18,744.58
  4. Step 4: Simplify right side
    27,712.63x = 716,289,822.12
  5. Step 5: Solve for x
    x = 716,289,822.12/27,712.63
  6. Step 6: Final answer
    x = 25,847.05

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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.