Home / 42,965.30-64,435.50-18,004.68

Finding the Fourth Proportional to 42,965.30, 64,435.50 and 18,004.68

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Solution

The fourth proportional to 42,965.30, 64,435.50 and 18,004.68 is: 27,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,965.30 : 64,435.50 = 18,004.68 : x
  2. Step 2: Convert to fraction form
    42,965.30/64,435.50 = 18,004.68/x
  3. Step 3: Cross multiply
    42,965.30x = 64,435.50 × 18,004.68
  4. Step 4: Simplify right side
    42,965.30x = 1,160,140,558.14
  5. Step 5: Solve for x
    x = 1,160,140,558.14/42,965.30
  6. Step 6: Final answer
    x = 27,001.80

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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.