Home / 28,665.36-39,549.60-19,710

Finding the Fourth Proportional to 28,665.36, 39,549.60 and 19,710

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Solution

The fourth proportional to 28,665.36, 39,549.60 and 19,710 is: 27,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.36 : 39,549.60 = 19,710 : x
  2. Step 2: Convert to fraction form
    28,665.36/39,549.60 = 19,710/x
  3. Step 3: Cross multiply
    28,665.36x = 39,549.60 × 19,710
  4. Step 4: Simplify right side
    28,665.36x = 779,522,616
  5. Step 5: Solve for x
    x = 779,522,616/28,665.36
  6. Step 6: Final answer
    x = 27,193.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.