Home / 19,298.66-28,931.58-18,380.12

Finding the Fourth Proportional to 19,298.66, 28,931.58 and 18,380.12

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Solution

The fourth proportional to 19,298.66, 28,931.58 and 18,380.12 is: 27,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,298.66 : 28,931.58 = 18,380.12 : x
  2. Step 2: Convert to fraction form
    19,298.66/28,931.58 = 18,380.12/x
  3. Step 3: Cross multiply
    19,298.66x = 28,931.58 × 18,380.12
  4. Step 4: Simplify right side
    19,298.66x = 531,765,912.19
  5. Step 5: Solve for x
    x = 531,765,912.19/19,298.66
  6. Step 6: Final answer
    x = 27,554.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.