Home / 20,022.98-27,631.17-11,070.86

Finding the Fourth Proportional to 20,022.98, 27,631.17 and 11,070.86

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Solution

The fourth proportional to 20,022.98, 27,631.17 and 11,070.86 is: 15,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.98 : 27,631.17 = 11,070.86 : x
  2. Step 2: Convert to fraction form
    20,022.98/27,631.17 = 11,070.86/x
  3. Step 3: Cross multiply
    20,022.98x = 27,631.17 × 11,070.86
  4. Step 4: Simplify right side
    20,022.98x = 305,900,814.71
  5. Step 5: Solve for x
    x = 305,900,814.71/20,022.98
  6. Step 6: Final answer
    x = 15,277.49

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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.