Home / 20,735.16-28,614.38-11,303.79

Finding the Fourth Proportional to 20,735.16, 28,614.38 and 11,303.79

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Solution

The fourth proportional to 20,735.16, 28,614.38 and 11,303.79 is: 15,599.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.16 : 28,614.38 = 11,303.79 : x
  2. Step 2: Convert to fraction form
    20,735.16/28,614.38 = 11,303.79/x
  3. Step 3: Cross multiply
    20,735.16x = 28,614.38 × 11,303.79
  4. Step 4: Simplify right side
    20,735.16x = 323,450,885.98
  5. Step 5: Solve for x
    x = 323,450,885.98/20,735.16
  6. Step 6: Final answer
    x = 15,599.15

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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.