Home / 26,688.72-39,974.76-13,518.48

Finding the Fourth Proportional to 26,688.72, 39,974.76 and 13,518.48

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Solution

The fourth proportional to 26,688.72, 39,974.76 and 13,518.48 is: 20,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.72 : 39,974.76 = 13,518.48 : x
  2. Step 2: Convert to fraction form
    26,688.72/39,974.76 = 13,518.48/x
  3. Step 3: Cross multiply
    26,688.72x = 39,974.76 × 13,518.48
  4. Step 4: Simplify right side
    26,688.72x = 540,397,993.56
  5. Step 5: Solve for x
    x = 540,397,993.56/26,688.72
  6. Step 6: Final answer
    x = 20,248.18

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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.