Home / 39,606.40-54,656.82-21,702.52

Finding the Fourth Proportional to 39,606.40, 54,656.82 and 21,702.52

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Solution

The fourth proportional to 39,606.40, 54,656.82 and 21,702.52 is: 29,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,606.40 : 54,656.82 = 21,702.52 : x
  2. Step 2: Convert to fraction form
    39,606.40/54,656.82 = 21,702.52/x
  3. Step 3: Cross multiply
    39,606.40x = 54,656.82 × 21,702.52
  4. Step 4: Simplify right side
    39,606.40x = 1,186,190,729.19
  5. Step 5: Solve for x
    x = 1,186,190,729.19/39,606.40
  6. Step 6: Final answer
    x = 29,949.47

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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.