Home / 20,839.03-28,771.28-18,597.06

Finding the Fourth Proportional to 20,839.03, 28,771.28 and 18,597.06

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Solution

The fourth proportional to 20,839.03, 28,771.28 and 18,597.06 is: 25,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.03 : 28,771.28 = 18,597.06 : x
  2. Step 2: Convert to fraction form
    20,839.03/28,771.28 = 18,597.06/x
  3. Step 3: Cross multiply
    20,839.03x = 28,771.28 × 18,597.06
  4. Step 4: Simplify right side
    20,839.03x = 535,060,983.60
  5. Step 5: Solve for x
    x = 535,060,983.60/20,839.03
  6. Step 6: Final answer
    x = 25,675.91

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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.