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Finding the Fourth Proportional to 35,177.80, 52,766.70 and 19,431.40

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Solution

The fourth proportional to 35,177.80, 52,766.70 and 19,431.40 is: 29,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,177.80 : 52,766.70 = 19,431.40 : x
  2. Step 2: Convert to fraction form
    35,177.80/52,766.70 = 19,431.40/x
  3. Step 3: Cross multiply
    35,177.80x = 52,766.70 × 19,431.40
  4. Step 4: Simplify right side
    35,177.80x = 1,025,330,854.38
  5. Step 5: Solve for x
    x = 1,025,330,854.38/35,177.80
  6. Step 6: Final answer
    x = 29,147.10

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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.