Home / 20,486.39-28,267.18-11,534.27

Finding the Fourth Proportional to 20,486.39, 28,267.18 and 11,534.27

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Solution

The fourth proportional to 20,486.39, 28,267.18 and 11,534.27 is: 15,915.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486.39 : 28,267.18 = 11,534.27 : x
  2. Step 2: Convert to fraction form
    20,486.39/28,267.18 = 11,534.27/x
  3. Step 3: Cross multiply
    20,486.39x = 28,267.18 × 11,534.27
  4. Step 4: Simplify right side
    20,486.39x = 326,041,116.09
  5. Step 5: Solve for x
    x = 326,041,116.09/20,486.39
  6. Step 6: Final answer
    x = 15,915.01

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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.