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Finding the Fourth Proportional to 19,975, 29,810.61 and 17,760.74

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Solution

The fourth proportional to 19,975, 29,810.61 and 17,760.74 is: 26,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975 : 29,810.61 = 17,760.74 : x
  2. Step 2: Convert to fraction form
    19,975/29,810.61 = 17,760.74/x
  3. Step 3: Cross multiply
    19,975x = 29,810.61 × 17,760.74
  4. Step 4: Simplify right side
    19,975x = 529,458,493.45
  5. Step 5: Solve for x
    x = 529,458,493.45/19,975
  6. Step 6: Final answer
    x = 26,506.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.