Home / 42,562.24-63,852.57-12,979.28

Finding the Fourth Proportional to 42,562.24, 63,852.57 and 12,979.28

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Solution

The fourth proportional to 42,562.24, 63,852.57 and 12,979.28 is: 19,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,562.24 : 63,852.57 = 12,979.28 : x
  2. Step 2: Convert to fraction form
    42,562.24/63,852.57 = 12,979.28/x
  3. Step 3: Cross multiply
    42,562.24x = 63,852.57 × 12,979.28
  4. Step 4: Simplify right side
    42,562.24x = 828,760,544.38
  5. Step 5: Solve for x
    x = 828,760,544.38/42,562.24
  6. Step 6: Final answer
    x = 19,471.73

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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.