Home / 39,605.98-54,657.52-21,702.12

Finding the Fourth Proportional to 39,605.98, 54,657.52 and 21,702.12

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Solution

The fourth proportional to 39,605.98, 54,657.52 and 21,702.12 is: 29,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,605.98 : 54,657.52 = 21,702.12 : x
  2. Step 2: Convert to fraction form
    39,605.98/54,657.52 = 21,702.12/x
  3. Step 3: Cross multiply
    39,605.98x = 54,657.52 × 21,702.12
  4. Step 4: Simplify right side
    39,605.98x = 1,186,183,949.43
  5. Step 5: Solve for x
    x = 1,186,183,949.43/39,605.98
  6. Step 6: Final answer
    x = 29,949.62

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1.5x scale

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.