Home / 28,655.18-39,569.36-17,918.44

Finding the Fourth Proportional to 28,655.18, 39,569.36 and 17,918.44

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Solution

The fourth proportional to 28,655.18, 39,569.36 and 17,918.44 is: 24,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.18 : 39,569.36 = 17,918.44 : x
  2. Step 2: Convert to fraction form
    28,655.18/39,569.36 = 17,918.44/x
  3. Step 3: Cross multiply
    28,655.18x = 39,569.36 × 17,918.44
  4. Step 4: Simplify right side
    28,655.18x = 709,021,203.00
  5. Step 5: Solve for x
    x = 709,021,203.00/28,655.18
  6. Step 6: Final answer
    x = 24,743.21

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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.