Home / 43,018.28-64,543.97-20,829.95

Finding the Fourth Proportional to 43,018.28, 64,543.97 and 20,829.95

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Solution

The fourth proportional to 43,018.28, 64,543.97 and 20,829.95 is: 31,252.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,018.28 : 64,543.97 = 20,829.95 : x
  2. Step 2: Convert to fraction form
    43,018.28/64,543.97 = 20,829.95/x
  3. Step 3: Cross multiply
    43,018.28x = 64,543.97 × 20,829.95
  4. Step 4: Simplify right side
    43,018.28x = 1,344,447,241.03
  5. Step 5: Solve for x
    x = 1,344,447,241.03/43,018.28
  6. Step 6: Final answer
    x = 31,252.93

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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.