Home / 20,551.32-28,359.45-11,599.20

Finding the Fourth Proportional to 20,551.32, 28,359.45 and 11,599.20

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Solution

The fourth proportional to 20,551.32, 28,359.45 and 11,599.20 is: 16,006.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.32 : 28,359.45 = 11,599.20 : x
  2. Step 2: Convert to fraction form
    20,551.32/28,359.45 = 11,599.20/x
  3. Step 3: Cross multiply
    20,551.32x = 28,359.45 × 11,599.20
  4. Step 4: Simplify right side
    20,551.32x = 328,946,932.44
  5. Step 5: Solve for x
    x = 328,946,932.44/20,551.32
  6. Step 6: Final answer
    x = 16,006.12

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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.