Home / 19,955.59-29,935.70-6,629.78

Finding the Fourth Proportional to 19,955.59, 29,935.70 and 6,629.78

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Solution

The fourth proportional to 19,955.59, 29,935.70 and 6,629.78 is: 9,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.59 : 29,935.70 = 6,629.78 : x
  2. Step 2: Convert to fraction form
    19,955.59/29,935.70 = 6,629.78/x
  3. Step 3: Cross multiply
    19,955.59x = 29,935.70 × 6,629.78
  4. Step 4: Simplify right side
    19,955.59x = 198,466,974.11
  5. Step 5: Solve for x
    x = 198,466,974.11/19,955.59
  6. Step 6: Final answer
    x = 9,945.43

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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.