Home / 28,884.40-39,839.13-18,263.80

Finding the Fourth Proportional to 28,884.40, 39,839.13 and 18,263.80

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Solution

The fourth proportional to 28,884.40, 39,839.13 and 18,263.80 is: 25,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.40 : 39,839.13 = 18,263.80 : x
  2. Step 2: Convert to fraction form
    28,884.40/39,839.13 = 18,263.80/x
  3. Step 3: Cross multiply
    28,884.40x = 39,839.13 × 18,263.80
  4. Step 4: Simplify right side
    28,884.40x = 727,613,902.49
  5. Step 5: Solve for x
    x = 727,613,902.49/28,884.40
  6. Step 6: Final answer
    x = 25,190.55

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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.