Home / 20,461.42-28,233.84-11,508.58

Finding the Fourth Proportional to 20,461.42, 28,233.84 and 11,508.58

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Solution

The fourth proportional to 20,461.42, 28,233.84 and 11,508.58 is: 15,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461.42 : 28,233.84 = 11,508.58 : x
  2. Step 2: Convert to fraction form
    20,461.42/28,233.84 = 11,508.58/x
  3. Step 3: Cross multiply
    20,461.42x = 28,233.84 × 11,508.58
  4. Step 4: Simplify right side
    20,461.42x = 324,931,406.35
  5. Step 5: Solve for x
    x = 324,931,406.35/20,461.42
  6. Step 6: Final answer
    x = 15,880.20

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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.