Home / 43,280.70-64,881.87-16,978.38

Finding the Fourth Proportional to 43,280.70, 64,881.87 and 16,978.38

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Solution

The fourth proportional to 43,280.70, 64,881.87 and 16,978.38 is: 25,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,280.70 : 64,881.87 = 16,978.38 : x
  2. Step 2: Convert to fraction form
    43,280.70/64,881.87 = 16,978.38/x
  3. Step 3: Cross multiply
    43,280.70x = 64,881.87 × 16,978.38
  4. Step 4: Simplify right side
    43,280.70x = 1,101,588,980.30
  5. Step 5: Solve for x
    x = 1,101,588,980.30/43,280.70
  6. Step 6: Final answer
    x = 25,452.20

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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.