Home / 42,379.26-63,586.83-21,308.22

Finding the Fourth Proportional to 42,379.26, 63,586.83 and 21,308.22

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Solution

The fourth proportional to 42,379.26, 63,586.83 and 21,308.22 is: 31,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,379.26 : 63,586.83 = 21,308.22 : x
  2. Step 2: Convert to fraction form
    42,379.26/63,586.83 = 21,308.22/x
  3. Step 3: Cross multiply
    42,379.26x = 63,586.83 × 21,308.22
  4. Step 4: Simplify right side
    42,379.26x = 1,354,922,162.74
  5. Step 5: Solve for x
    x = 1,354,922,162.74/42,379.26
  6. Step 6: Final answer
    x = 31,971.35

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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.