Home / 43,280.33-64,881.30-16,978.01

Finding the Fourth Proportional to 43,280.33, 64,881.30 and 16,978.01

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Solution

The fourth proportional to 43,280.33, 64,881.30 and 16,978.01 is: 25,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.33 : 64,881.30 = 16,978.01 : x
  2. Step 2: Convert to fraction form
    43,280.33/64,881.30 = 16,978.01/x
  3. Step 3: Cross multiply
    43,280.33x = 64,881.30 × 16,978.01
  4. Step 4: Simplify right side
    43,280.33x = 1,101,555,099.47
  5. Step 5: Solve for x
    x = 1,101,555,099.47/43,280.33
  6. Step 6: Final answer
    x = 25,451.64

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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.