Home / 18,341.40-27,512.10-13,359.90

Finding the Fourth Proportional to 18,341.40, 27,512.10 and 13,359.90

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Solution

The fourth proportional to 18,341.40, 27,512.10 and 13,359.90 is: 20,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.40 : 27,512.10 = 13,359.90 : x
  2. Step 2: Convert to fraction form
    18,341.40/27,512.10 = 13,359.90/x
  3. Step 3: Cross multiply
    18,341.40x = 27,512.10 × 13,359.90
  4. Step 4: Simplify right side
    18,341.40x = 367,558,904.79
  5. Step 5: Solve for x
    x = 367,558,904.79/18,341.40
  6. Step 6: Final answer
    x = 20,039.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.