Home / 39,735.16-54,835.54-21,830.62

Finding the Fourth Proportional to 39,735.16, 54,835.54 and 21,830.62

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Solution

The fourth proportional to 39,735.16, 54,835.54 and 21,830.62 is: 30,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,735.16 : 54,835.54 = 21,830.62 : x
  2. Step 2: Convert to fraction form
    39,735.16/54,835.54 = 21,830.62/x
  3. Step 3: Cross multiply
    39,735.16x = 54,835.54 × 21,830.62
  4. Step 4: Simplify right side
    39,735.16x = 1,197,093,836.23
  5. Step 5: Solve for x
    x = 1,197,093,836.23/39,735.16
  6. Step 6: Final answer
    x = 30,126.82

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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.