Home / 19,705.02-27,191.90-11,205.96

Finding the Fourth Proportional to 19,705.02, 27,191.90 and 11,205.96

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Solution

The fourth proportional to 19,705.02, 27,191.90 and 11,205.96 is: 15,463.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.02 : 27,191.90 = 11,205.96 : x
  2. Step 2: Convert to fraction form
    19,705.02/27,191.90 = 11,205.96/x
  3. Step 3: Cross multiply
    19,705.02x = 27,191.90 × 11,205.96
  4. Step 4: Simplify right side
    19,705.02x = 304,711,343.72
  5. Step 5: Solve for x
    x = 304,711,343.72/19,705.02
  6. Step 6: Final answer
    x = 15,463.64

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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.