Home / 38,735.80-53,455.88-21,743.70

Finding the Fourth Proportional to 38,735.80, 53,455.88 and 21,743.70

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Solution

The fourth proportional to 38,735.80, 53,455.88 and 21,743.70 is: 30,006.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,735.80 : 53,455.88 = 21,743.70 : x
  2. Step 2: Convert to fraction form
    38,735.80/53,455.88 = 21,743.70/x
  3. Step 3: Cross multiply
    38,735.80x = 53,455.88 × 21,743.70
  4. Step 4: Simplify right side
    38,735.80x = 1,162,328,617.96
  5. Step 5: Solve for x
    x = 1,162,328,617.96/38,735.80
  6. Step 6: Final answer
    x = 30,006.57

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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.