Home / 19,807.42-27,330.78-11,305.66

Finding the Fourth Proportional to 19,807.42, 27,330.78 and 11,305.66

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Solution

The fourth proportional to 19,807.42, 27,330.78 and 11,305.66 is: 15,599.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.42 : 27,330.78 = 11,305.66 : x
  2. Step 2: Convert to fraction form
    19,807.42/27,330.78 = 11,305.66/x
  3. Step 3: Cross multiply
    19,807.42x = 27,330.78 × 11,305.66
  4. Step 4: Simplify right side
    19,807.42x = 308,992,506.21
  5. Step 5: Solve for x
    x = 308,992,506.21/19,807.42
  6. Step 6: Final answer
    x = 15,599.84

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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.