Home / 20,356.47-28,092.18-11,740.65

Finding the Fourth Proportional to 20,356.47, 28,092.18 and 11,740.65

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Solution

The fourth proportional to 20,356.47, 28,092.18 and 11,740.65 is: 16,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.47 : 28,092.18 = 11,740.65 : x
  2. Step 2: Convert to fraction form
    20,356.47/28,092.18 = 11,740.65/x
  3. Step 3: Cross multiply
    20,356.47x = 28,092.18 × 11,740.65
  4. Step 4: Simplify right side
    20,356.47x = 329,820,453.12
  5. Step 5: Solve for x
    x = 329,820,453.12/20,356.47
  6. Step 6: Final answer
    x = 16,202.24

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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.