Home / 42,005.60-62,986.52-19,813.02

Finding the Fourth Proportional to 42,005.60, 62,986.52 and 19,813.02

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Solution

The fourth proportional to 42,005.60, 62,986.52 and 19,813.02 is: 29,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.60 : 62,986.52 = 19,813.02 : x
  2. Step 2: Convert to fraction form
    42,005.60/62,986.52 = 19,813.02/x
  3. Step 3: Cross multiply
    42,005.60x = 62,986.52 × 19,813.02
  4. Step 4: Simplify right side
    42,005.60x = 1,247,953,180.49
  5. Step 5: Solve for x
    x = 1,247,953,180.49/42,005.60
  6. Step 6: Final answer
    x = 29,709.21

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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.