Home / 20,602.46-28,433.16-11,651.56

Finding the Fourth Proportional to 20,602.46, 28,433.16 and 11,651.56

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Solution

The fourth proportional to 20,602.46, 28,433.16 and 11,651.56 is: 16,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,602.46 : 28,433.16 = 11,651.56 : x
  2. Step 2: Convert to fraction form
    20,602.46/28,433.16 = 11,651.56/x
  3. Step 3: Cross multiply
    20,602.46x = 28,433.16 × 11,651.56
  4. Step 4: Simplify right side
    20,602.46x = 331,290,598.65
  5. Step 5: Solve for x
    x = 331,290,598.65/20,602.46
  6. Step 6: Final answer
    x = 16,080.15

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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.