Home / 39,800.50-54,922.62-21,895.06

Finding the Fourth Proportional to 39,800.50, 54,922.62 and 21,895.06

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Solution

The fourth proportional to 39,800.50, 54,922.62 and 21,895.06 is: 30,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.50 : 54,922.62 = 21,895.06 : x
  2. Step 2: Convert to fraction form
    39,800.50/54,922.62 = 21,895.06/x
  3. Step 3: Cross multiply
    39,800.50x = 54,922.62 × 21,895.06
  4. Step 4: Simplify right side
    39,800.50x = 1,202,534,060.26
  5. Step 5: Solve for x
    x = 1,202,534,060.26/39,800.50
  6. Step 6: Final answer
    x = 30,214.04

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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.