Home / 28,389.69-42,586.36-9,664.52

Finding the Fourth Proportional to 28,389.69, 42,586.36 and 9,664.52

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Solution

The fourth proportional to 28,389.69, 42,586.36 and 9,664.52 is: 14,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.69 : 42,586.36 = 9,664.52 : x
  2. Step 2: Convert to fraction form
    28,389.69/42,586.36 = 9,664.52/x
  3. Step 3: Cross multiply
    28,389.69x = 42,586.36 × 9,664.52
  4. Step 4: Simplify right side
    28,389.69x = 411,576,490.85
  5. Step 5: Solve for x
    x = 411,576,490.85/28,389.69
  6. Step 6: Final answer
    x = 14,497.39

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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.