Home / 42,471.39-63,703.83-12,889.38

Finding the Fourth Proportional to 42,471.39, 63,703.83 and 12,889.38

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Solution

The fourth proportional to 42,471.39, 63,703.83 and 12,889.38 is: 19,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,471.39 : 63,703.83 = 12,889.38 : x
  2. Step 2: Convert to fraction form
    42,471.39/63,703.83 = 12,889.38/x
  3. Step 3: Cross multiply
    42,471.39x = 63,703.83 × 12,889.38
  4. Step 4: Simplify right side
    42,471.39x = 821,102,872.33
  5. Step 5: Solve for x
    x = 821,102,872.33/42,471.39
  6. Step 6: Final answer
    x = 19,333.08

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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.