Home / 28,429.62-42,644.43-9,957.30

Finding the Fourth Proportional to 28,429.62, 42,644.43 and 9,957.30

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Solution

The fourth proportional to 28,429.62, 42,644.43 and 9,957.30 is: 14,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.62 : 42,644.43 = 9,957.30 : x
  2. Step 2: Convert to fraction form
    28,429.62/42,644.43 = 9,957.30/x
  3. Step 3: Cross multiply
    28,429.62x = 42,644.43 × 9,957.30
  4. Step 4: Simplify right side
    28,429.62x = 424,623,382.84
  5. Step 5: Solve for x
    x = 424,623,382.84/28,429.62
  6. Step 6: Final answer
    x = 14,935.95

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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.