Home / 19,872.24-27,363.60-19,434.84

Finding the Fourth Proportional to 19,872.24, 27,363.60 and 19,434.84

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Solution

The fourth proportional to 19,872.24, 27,363.60 and 19,434.84 is: 26,761.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.24 : 27,363.60 = 19,434.84 : x
  2. Step 2: Convert to fraction form
    19,872.24/27,363.60 = 19,434.84/x
  3. Step 3: Cross multiply
    19,872.24x = 27,363.60 × 19,434.84
  4. Step 4: Simplify right side
    19,872.24x = 531,807,187.82
  5. Step 5: Solve for x
    x = 531,807,187.82/19,872.24
  6. Step 6: Final answer
    x = 26,761.31

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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.