Home / 35,739.70-49,319.10-19,823.80

Finding the Fourth Proportional to 35,739.70, 49,319.10 and 19,823.80

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Solution

The fourth proportional to 35,739.70, 49,319.10 and 19,823.80 is: 27,355.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,739.70 : 49,319.10 = 19,823.80 : x
  2. Step 2: Convert to fraction form
    35,739.70/49,319.10 = 19,823.80/x
  3. Step 3: Cross multiply
    35,739.70x = 49,319.10 × 19,823.80
  4. Step 4: Simplify right side
    35,739.70x = 977,691,974.58
  5. Step 5: Solve for x
    x = 977,691,974.58/35,739.70
  6. Step 6: Final answer
    x = 27,355.91

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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.