Home / 20,651.06-28,502.62-12,265.94

Finding the Fourth Proportional to 20,651.06, 28,502.62 and 12,265.94

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Solution

The fourth proportional to 20,651.06, 28,502.62 and 12,265.94 is: 16,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.06 : 28,502.62 = 12,265.94 : x
  2. Step 2: Convert to fraction form
    20,651.06/28,502.62 = 12,265.94/x
  3. Step 3: Cross multiply
    20,651.06x = 28,502.62 × 12,265.94
  4. Step 4: Simplify right side
    20,651.06x = 349,611,426.76
  5. Step 5: Solve for x
    x = 349,611,426.76/20,651.06
  6. Step 6: Final answer
    x = 16,929.47

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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.