Home / 19,899.60-29,839.13-5,857.80

Finding the Fourth Proportional to 19,899.60, 29,839.13 and 5,857.80

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Solution

The fourth proportional to 19,899.60, 29,839.13 and 5,857.80 is: 8,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.60 : 29,839.13 = 5,857.80 : x
  2. Step 2: Convert to fraction form
    19,899.60/29,839.13 = 5,857.80/x
  3. Step 3: Cross multiply
    19,899.60x = 29,839.13 × 5,857.80
  4. Step 4: Simplify right side
    19,899.60x = 174,791,626.43
  5. Step 5: Solve for x
    x = 174,791,626.43/19,899.60
  6. Step 6: Final answer
    x = 8,783.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.