Home / 20,039.51-27,654.93-12,080.04

Finding the Fourth Proportional to 20,039.51, 27,654.93 and 12,080.04

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Solution

The fourth proportional to 20,039.51, 27,654.93 and 12,080.04 is: 16,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.51 : 27,654.93 = 12,080.04 : x
  2. Step 2: Convert to fraction form
    20,039.51/27,654.93 = 12,080.04/x
  3. Step 3: Cross multiply
    20,039.51x = 27,654.93 × 12,080.04
  4. Step 4: Simplify right side
    20,039.51x = 334,072,660.60
  5. Step 5: Solve for x
    x = 334,072,660.60/20,039.51
  6. Step 6: Final answer
    x = 16,670.70

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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.