Home / 39,606.98-54,657.55-21,702.06

Finding the Fourth Proportional to 39,606.98, 54,657.55 and 21,702.06

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Solution

The fourth proportional to 39,606.98, 54,657.55 and 21,702.06 is: 29,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,606.98 : 54,657.55 = 21,702.06 : x
  2. Step 2: Convert to fraction form
    39,606.98/54,657.55 = 21,702.06/x
  3. Step 3: Cross multiply
    39,606.98x = 54,657.55 × 21,702.06
  4. Step 4: Simplify right side
    39,606.98x = 1,186,181,456.68
  5. Step 5: Solve for x
    x = 1,186,181,456.68/39,606.98
  6. Step 6: Final answer
    x = 29,948.80

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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.