Home / 20,714.27-28,585.73-11,282.87

Finding the Fourth Proportional to 20,714.27, 28,585.73 and 11,282.87

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Solution

The fourth proportional to 20,714.27, 28,585.73 and 11,282.87 is: 15,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.27 : 28,585.73 = 11,282.87 : x
  2. Step 2: Convert to fraction form
    20,714.27/28,585.73 = 11,282.87/x
  3. Step 3: Cross multiply
    20,714.27x = 28,585.73 × 11,282.87
  4. Step 4: Simplify right side
    20,714.27x = 322,529,075.45
  5. Step 5: Solve for x
    x = 322,529,075.45/20,714.27
  6. Step 6: Final answer
    x = 15,570.38

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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.