Home / 18,727.40-27,969.55-16,968.92

Finding the Fourth Proportional to 18,727.40, 27,969.55 and 16,968.92

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Solution

The fourth proportional to 18,727.40, 27,969.55 and 16,968.92 is: 25,343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.40 : 27,969.55 = 16,968.92 : x
  2. Step 2: Convert to fraction form
    18,727.40/27,969.55 = 16,968.92/x
  3. Step 3: Cross multiply
    18,727.40x = 27,969.55 × 16,968.92
  4. Step 4: Simplify right side
    18,727.40x = 474,613,056.39
  5. Step 5: Solve for x
    x = 474,613,056.39/18,727.40
  6. Step 6: Final answer
    x = 25,343.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.