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Finding the Fourth Proportional to 19,955.85, 29,937.83 and 9,425.85

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Solution

The fourth proportional to 19,955.85, 29,937.83 and 9,425.85 is: 14,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.85 : 29,937.83 = 9,425.85 : x
  2. Step 2: Convert to fraction form
    19,955.85/29,937.83 = 9,425.85/x
  3. Step 3: Cross multiply
    19,955.85x = 29,937.83 × 9,425.85
  4. Step 4: Simplify right side
    19,955.85x = 282,189,447.78
  5. Step 5: Solve for x
    x = 282,189,447.78/19,955.85
  6. Step 6: Final answer
    x = 14,140.69

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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.