Home / 20,516.28-30,764.16-10,652.82

Finding the Fourth Proportional to 20,516.28, 30,764.16 and 10,652.82

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Solution

The fourth proportional to 20,516.28, 30,764.16 and 10,652.82 is: 15,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.28 : 30,764.16 = 10,652.82 : x
  2. Step 2: Convert to fraction form
    20,516.28/30,764.16 = 10,652.82/x
  3. Step 3: Cross multiply
    20,516.28x = 30,764.16 × 10,652.82
  4. Step 4: Simplify right side
    20,516.28x = 327,725,058.93
  5. Step 5: Solve for x
    x = 327,725,058.93/20,516.28
  6. Step 6: Final answer
    x = 15,973.90

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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.