Home / 18,707.43-27,895.74-18,540.67

Finding the Fourth Proportional to 18,707.43, 27,895.74 and 18,540.67

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Solution

The fourth proportional to 18,707.43, 27,895.74 and 18,540.67 is: 27,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.43 : 27,895.74 = 18,540.67 : x
  2. Step 2: Convert to fraction form
    18,707.43/27,895.74 = 18,540.67/x
  3. Step 3: Cross multiply
    18,707.43x = 27,895.74 × 18,540.67
  4. Step 4: Simplify right side
    18,707.43x = 517,205,709.53
  5. Step 5: Solve for x
    x = 517,205,709.53/18,707.43
  6. Step 6: Final answer
    x = 27,647.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.