Home / 39,899.50-55,060.25-21,994.57

Finding the Fourth Proportional to 39,899.50, 55,060.25 and 21,994.57

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Solution

The fourth proportional to 39,899.50, 55,060.25 and 21,994.57 is: 30,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,899.50 : 55,060.25 = 21,994.57 : x
  2. Step 2: Convert to fraction form
    39,899.50/55,060.25 = 21,994.57/x
  3. Step 3: Cross multiply
    39,899.50x = 55,060.25 × 21,994.57
  4. Step 4: Simplify right side
    39,899.50x = 1,211,026,522.84
  5. Step 5: Solve for x
    x = 1,211,026,522.84/39,899.50
  6. Step 6: Final answer
    x = 30,351.92

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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.