Home / 42,963.90-64,469.34-16,669.68

Finding the Fourth Proportional to 42,963.90, 64,469.34 and 16,669.68

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Solution

The fourth proportional to 42,963.90, 64,469.34 and 16,669.68 is: 25,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,963.90 : 64,469.34 = 16,669.68 : x
  2. Step 2: Convert to fraction form
    42,963.90/64,469.34 = 16,669.68/x
  3. Step 3: Cross multiply
    42,963.90x = 64,469.34 × 16,669.68
  4. Step 4: Simplify right side
    42,963.90x = 1,074,683,267.61
  5. Step 5: Solve for x
    x = 1,074,683,267.61/42,963.90
  6. Step 6: Final answer
    x = 25,013.63

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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.