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Finding the Fourth Proportional to 35,702.76, 49,269.80 and 19,789.60

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Solution

The fourth proportional to 35,702.76, 49,269.80 and 19,789.60 is: 27,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,702.76 : 49,269.80 = 19,789.60 : x
  2. Step 2: Convert to fraction form
    35,702.76/49,269.80 = 19,789.60/x
  3. Step 3: Cross multiply
    35,702.76x = 49,269.80 × 19,789.60
  4. Step 4: Simplify right side
    35,702.76x = 975,029,634.08
  5. Step 5: Solve for x
    x = 975,029,634.08/35,702.76
  6. Step 6: Final answer
    x = 27,309.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.