Home / 20,703.46-28,568.38-11,749.18

Finding the Fourth Proportional to 20,703.46, 28,568.38 and 11,749.18

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Solution

The fourth proportional to 20,703.46, 28,568.38 and 11,749.18 is: 16,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.46 : 28,568.38 = 11,749.18 : x
  2. Step 2: Convert to fraction form
    20,703.46/28,568.38 = 11,749.18/x
  3. Step 3: Cross multiply
    20,703.46x = 28,568.38 × 11,749.18
  4. Step 4: Simplify right side
    20,703.46x = 335,655,038.93
  5. Step 5: Solve for x
    x = 335,655,038.93/20,703.46
  6. Step 6: Final answer
    x = 16,212.51

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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.