Home / 43,171.76-64,712.28-19,778.96

Finding the Fourth Proportional to 43,171.76, 64,712.28 and 19,778.96

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Solution

The fourth proportional to 43,171.76, 64,712.28 and 19,778.96 is: 29,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,171.76 : 64,712.28 = 19,778.96 : x
  2. Step 2: Convert to fraction form
    43,171.76/64,712.28 = 19,778.96/x
  3. Step 3: Cross multiply
    43,171.76x = 64,712.28 × 19,778.96
  4. Step 4: Simplify right side
    43,171.76x = 1,279,941,597.63
  5. Step 5: Solve for x
    x = 1,279,941,597.63/43,171.76
  6. Step 6: Final answer
    x = 29,647.66

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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.