Home / 20,185.04-27,795.44-14,509.78

Finding the Fourth Proportional to 20,185.04, 27,795.44 and 14,509.78

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Solution

The fourth proportional to 20,185.04, 27,795.44 and 14,509.78 is: 19,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.04 : 27,795.44 = 14,509.78 : x
  2. Step 2: Convert to fraction form
    20,185.04/27,795.44 = 14,509.78/x
  3. Step 3: Cross multiply
    20,185.04x = 27,795.44 × 14,509.78
  4. Step 4: Simplify right side
    20,185.04x = 403,305,719.40
  5. Step 5: Solve for x
    x = 403,305,719.40/20,185.04
  6. Step 6: Final answer
    x = 19,980.43

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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.