Home / 42,623.10-63,939.45-13,040.70

Finding the Fourth Proportional to 42,623.10, 63,939.45 and 13,040.70

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Solution

The fourth proportional to 42,623.10, 63,939.45 and 13,040.70 is: 19,562.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.10 : 63,939.45 = 13,040.70 : x
  2. Step 2: Convert to fraction form
    42,623.10/63,939.45 = 13,040.70/x
  3. Step 3: Cross multiply
    42,623.10x = 63,939.45 × 13,040.70
  4. Step 4: Simplify right side
    42,623.10x = 833,815,185.62
  5. Step 5: Solve for x
    x = 833,815,185.62/42,623.10
  6. Step 6: Final answer
    x = 19,562.52

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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.